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25088000 = 2125372
BaseRepresentation
bin101111110110…
…1000000000000
31202012121021012
41133231000000
522410304000
62253420052
7423146600
oct137550000
952177235
1025088000
1113185a93
12849a628
135275292
143490c00
152308735
hex17ed000

25088000 has 156 divisors (see below), whose sum is σ = 72834372. Its totient is φ = 8601600.

The previous prime is 25087991. The next prime is 25088017. The reversal of 25088000 is 88052.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 802816 + 24285184 = 896^2 + 4928^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3583997 + ... + 3584003.

It is an arithmetic number, because the mean of its divisors is an integer number (466887).

Almost surely, 225088000 is an apocalyptic number.

25088000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25088000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36417186).

25088000 is an abundant number, since it is smaller than the sum of its proper divisors (47746372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25088000 is an frugal number, since it uses more digits than its factorization.

25088000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 25088000 is about 5008.7922695995. The cubic root of 25088000 is about 292.7444568018.

The spelling of 25088000 in words is "twenty-five million, eighty-eight thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 49 50 56 64 70 80 98 100 112 125 128 140 160 175 196 200 224 245 250 256 280 320 350 392 400 448 490 500 512 560 640 700 784 800 875 896 980 1000 1024 1120 1225 1280 1400 1568 1600 1750 1792 1960 2000 2048 2240 2450 2560 2800 3136 3200 3500 3584 3920 4000 4096 4480 4900 5120 5600 6125 6272 6400 7000 7168 7840 8000 8960 9800 10240 11200 12250 12544 12800 14000 14336 15680 16000 17920 19600 20480 22400 24500 25088 25600 28000 28672 31360 32000 35840 39200 44800 49000 50176 51200 56000 62720 64000 71680 78400 89600 98000 100352 102400 112000 125440 128000 143360 156800 179200 196000 200704 224000 250880 256000 313600 358400 392000 448000 501760 512000 627200 716800 784000 896000 1003520 1254400 1568000 1792000 2508800 3136000 3584000 5017600 6272000 12544000 25088000