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25250625 = 3254672
BaseRepresentation
bin110000001010…
…0101101000001
31202111212100100
41200110231001
522431010000
62301113013
7424424661
oct140245501
952455310
1025250625
1113287194
128558769
1353012ca
1434d41a1
15233ba00
hex1814b41

25250625 has 45 divisors (see below), whose sum is σ = 46267221. Its totient is φ = 13266000.

The previous prime is 25250623. The next prime is 25250651. The reversal of 25250625 is 52605252.

The square root of 25250625 is 5025.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 1979649 + 23270976 = 1407^2 + 4824^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 25250625 - 21 = 25250623 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25250623) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 376842 + ... + 376908.

Almost surely, 225250625 is an apocalyptic number.

25250625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25250625 is the 5025-th square number.

25250625 is the 2513-rd centered octagonal number.

It is an amenable number.

25250625 is a deficient number, since it is larger than the sum of its proper divisors (21016596).

25250625 is an frugal number, since it uses more digits than its factorization.

25250625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The cubic root of 25250625 is about 293.3756359732.

Adding to 25250625 its reverse (52605252), we get a palindrome (77855877).

The spelling of 25250625 in words is "twenty-five million, two hundred fifty thousand, six hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 67 75 125 201 225 335 375 603 625 1005 1125 1675 1875 3015 4489 5025 5625 8375 13467 15075 22445 25125 40401 41875 67335 75375 112225 125625 202005 336675 376875 561125 1010025 1683375 2805625 5050125 8416875 25250625