25166925 has 108 divisors (see below), whose sum is σ = 56162080. Its totient is φ = 10523520.

The previous prime is 25166903. The next prime is 25166927. The reversal of 25166925 is 52966152.

It is not a de Polignac number, because 25166925 - 2⁵ = 25166893 is a prime.

It is a super-2 number, since 2×25166925² = 1266748227911250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (32400) is a multiple of the sum of its prime factors (100).

It is a self number, because there is not a number n which added to its sum of digits gives 25166925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25166927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 867811 + ... + 867839.

Almost surely, 2^25166925 is an apocalyptic number.

25166925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25166925 is an abundant number, since it is smaller than the sum of its proper divisors (30995155).

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

25166925 is a wasteful number, since it uses less digits than its factorization.

25166925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 63 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 25166925 is about 5016.6647286818. The cubic root of 25166925 is about 293.0511196125.

It can be divided in two parts, 251 and 66925, that added together give a palindrome (67176).

The spelling of 25166925 in words is "twenty-five million, one hundred sixty-six thousand, nine hundred twenty-five".