25693632 has 56 divisors (see below), whose sum is σ = 75539600. Its totient is φ = 8563968.

The previous prime is 25693597. The next prime is 25693639. The reversal of 25693632 is 23639652.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25693639) 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, 5707 + ... + 9162.

Almost surely, 2^25693632 is an apocalyptic number.

It is an amenable number.

25693632 is an abundant number, since it is smaller than the sum of its proper divisors (49845968).

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

25693632 is a wasteful number, since it uses less digits than its factorization.

25693632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14890 (or 14874 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 25693632 is about 5068.8886355887. Note that the first 3 decimals coincide. The cubic root of 25693632 is about 295.0813985854.

The spelling of 25693632 in words is "twenty-five million, six hundred ninety-three thousand, six hundred thirty-two".