232521232 has 20 divisors (see below), whose sum is σ = 450881856. Its totient is φ = 116164640.

The previous prime is 232521227. The next prime is 232521251. The reversal of 232521232 is 232125232.

It is a super-2 number, since 2×232521232² = 108132246661595648, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16557 + ... + 27187.

Almost surely, 2^232521232 is an apocalyptic number.

It is an amenable number.

232521232 is a deficient number, since it is larger than the sum of its proper divisors (218360624).

232521232 is a wasteful number, since it uses less digits than its factorization.

232521232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12006 (or 12000 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 232521232 is about 15248.6468907900. The cubic root of 232521232 is about 614.9231904426.

Adding to 232521232 its reverse (232125232), we get a palindrome (464646464).

The spelling of 232521232 in words is "two hundred thirty-two million, five hundred twenty-one thousand, two hundred thirty-two".