25315164 has 108 divisors (see below), whose sum is σ = 75688704. Its totient is φ = 7112448.

The previous prime is 25315153. The next prime is 25315177. The reversal of 25315164 is 46151352.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 199269 + ... + 199395.

Almost surely, 2^25315164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25315164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37844352).

25315164 is an abundant number, since it is smaller than the sum of its proper divisors (50373540).

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

25315164 is a wasteful number, since it uses less digits than its factorization.

25315164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 252 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 25315164 is about 5031.4176928576. The cubic root of 25315164 is about 293.6253731781.

The spelling of 25315164 in words is "twenty-five million, three hundred fifteen thousand, one hundred sixty-four".