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25040125 = 531118211
BaseRepresentation
bin101111110000…
…1010011111101
31202010011121001
41133201103331
522402241000
62252410301
7422560165
oct137412375
952104531
1025040125
1113153020
128476991
135259556
14347b5a5
1522e946a
hex17e14fd

25040125 has 16 divisors (see below), whose sum is σ = 34092864. Its totient is φ = 18210000.

The previous prime is 25040107. The next prime is 25040149. The reversal of 25040125 is 52104052.

It is not a de Polignac number, because 25040125 - 29 = 25039613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7731 + ... + 10480.

It is an arithmetic number, because the mean of its divisors is an integer number (2130804).

Almost surely, 225040125 is an apocalyptic number.

25040125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25040125 is a deficient number, since it is larger than the sum of its proper divisors (9052739).

25040125 is a wasteful number, since it uses less digits than its factorization.

25040125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18237 (or 18227 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 25040125 is about 5004.0108912751. The cubic root of 25040125 is about 292.5581251521.

Adding to 25040125 its reverse (52104052), we get a palindrome (77144177).

The spelling of 25040125 in words is "twenty-five million, forty thousand, one hundred twenty-five".

Divisors: 1 5 11 25 55 125 275 1375 18211 91055 200321 455275 1001605 2276375 5008025 25040125