25631132 has 12 divisors (see below), whose sum is σ = 45266760. Its totient is φ = 12697776.

The previous prime is 25631117. The next prime is 25631143. The reversal of 25631132 is 23113652.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 25631098 and 25631107.

It is a congruent number.

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, 28958 + ... + 29829.

It is an arithmetic number, because the mean of its divisors is an integer number (3772230).

Almost surely, 2^25631132 is an apocalyptic number.

It is an amenable number.

25631132 is a deficient number, since it is larger than the sum of its proper divisors (19635628).

25631132 is a wasteful number, since it uses less digits than its factorization.

25631132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58900 (or 58898 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 25631132 is about 5062.7198223880. The cubic root of 25631132 is about 294.8419415665.

Adding to 25631132 its reverse (23113652), we get a palindrome (48744784).

The spelling of 25631132 in words is "twenty-five million, six hundred thirty-one thousand, one hundred thirty-two".