25570632 has 32 divisors (see below), whose sum is σ = 65289600. Its totient is φ = 8341824.

The previous prime is 25570631. The next prime is 25570667. The reversal of 25570632 is 23607552.

It is a self number, because there is not a number n which added to its sum of digits gives 25570632.

It is not an unprimeable number, because it can be changed into a prime (25570631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10207 + ... + 12462.

It is an arithmetic number, because the mean of its divisors is an integer number (2040300).

Almost surely, 2^25570632 is an apocalyptic number.

It is an amenable number.

25570632 is an abundant number, since it is smaller than the sum of its proper divisors (39718968).

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

25570632 is a wasteful number, since it uses less digits than its factorization.

25570632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22725 (or 22721 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 25570632 is about 5056.7412431328. The cubic root of 25570632 is about 294.6097761039.

The spelling of 25570632 in words is "twenty-five million, five hundred seventy thousand, six hundred thirty-two".