25711232 has 16 divisors (see below), whose sum is σ = 51221850. Its totient is φ = 12855552.

The previous prime is 25711211. The next prime is 25711241. The reversal of 25711232 is 23211752.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18181696 + 7529536 = 4264^2 + 2744^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×25711232² = 1322134901915648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25711198 and 25711207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100307 + ... + 100562.

Almost surely, 2^25711232 is an apocalyptic number.

It is an amenable number.

25711232 is a deficient number, since it is larger than the sum of its proper divisors (25510618).

25711232 is an equidigital number, since it uses as much as digits as its factorization.

25711232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200883 (or 200871 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 25711232 is about 5070.6244191421. The cubic root of 25711232 is about 295.1487595985.

Adding to 25711232 its reverse (23211752), we get a palindrome (48922984).

The spelling of 25711232 in words is "twenty-five million, seven hundred eleven thousand, two hundred thirty-two".