25553532 has 48 divisors (see below), whose sum is σ = 62222720. Its totient is φ = 8154432.

The previous prime is 25553519. The next prime is 25553551. The reversal of 25553532 is 23535552.

It is a self number, because there is not a number n which added to its sum of digits gives 25553532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29319 + ... + 30177.

Almost surely, 2^25553532 is an apocalyptic number.

It is an amenable number.

25553532 is an abundant number, since it is smaller than the sum of its proper divisors (36669188).

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

25553532 is a wasteful number, since it uses less digits than its factorization.

25553532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 968 counting only the distinct ones).

The product of its digits is 22500, while the sum is 30.

The square root of 25553532 is about 5055.0501481192. The cubic root of 25553532 is about 294.5440894132.

The spelling of 25553532 in words is "twenty-five million, five hundred fifty-three thousand, five hundred thirty-two".