25551152 has 20 divisors (see below), whose sum is σ = 54006216. Its totient is φ = 11614080.

The previous prime is 25551139. The next prime is 25551173. The reversal of 25551152 is 25115552.

It is a super-2 number, since 2×25551152² = 1305722737054208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72413 + ... + 72764.

Almost surely, 2^25551152 is an apocalyptic number.

25551152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25551152 is an abundant number, since it is smaller than the sum of its proper divisors (28455064).

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

25551152 is a wasteful number, since it uses less digits than its factorization.

25551152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145196 (or 145190 counting only the distinct ones).

The product of its digits is 2500, while the sum is 26.

The square root of 25551152 is about 5054.8147344883. The cubic root of 25551152 is about 294.5349447322.

Subtracting from 25551152 its reverse (25115552), we obtain a square (435600 = 660²).

The spelling of 25551152 in words is "twenty-five million, five hundred fifty-one thousand, one hundred fifty-two".