25291952 has 20 divisors (see below), whose sum is σ = 56003856. Its totient is φ = 10839360.

The previous prime is 25291951. The next prime is 25292017. The reversal of 25291952 is 25919252.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (25291951) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 112799 + ... + 113022.

Almost surely, 2^25291952 is an apocalyptic number.

It is an amenable number.

25291952 is an abundant number, since it is smaller than the sum of its proper divisors (30711904).

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

25291952 is a wasteful number, since it uses less digits than its factorization.

25291952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225836 (or 225830 counting only the distinct ones).

The product of its digits is 16200, while the sum is 35.

The square root of 25291952 is about 5029.1104581228. The cubic root of 25291952 is about 293.5356019991.

The spelling of 25291952 in words is "twenty-five million, two hundred ninety-one thousand, nine hundred fifty-two".