25517152 has 24 divisors (see below), whose sum is σ = 52882200. Its totient is φ = 12086784.

The previous prime is 25517147. The next prime is 25517159. The reversal of 25517152 is 25171552.

It is a super-2 number, since 2×25517152² = 1302250092382208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25517152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25517159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20377 + ... + 21592.

It is an arithmetic number, because the mean of its divisors is an integer number (2203425).

Almost surely, 2^25517152 is an apocalyptic number.

It is an amenable number.

25517152 is an abundant number, since it is smaller than the sum of its proper divisors (27365048).

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

25517152 is a wasteful number, since it uses less digits than its factorization.

25517152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41998 (or 41990 counting only the distinct ones).

The product of its digits is 3500, while the sum is 28.

The square root of 25517152 is about 5051.4504847618. The cubic root of 25517152 is about 294.4042443859.

The spelling of 25517152 in words is "twenty-five million, five hundred seventeen thousand, one hundred fifty-two".