251232232232 has 16 divisors (see below), whose sum is σ = 473031403200. Its totient is φ = 125090524720.

The previous prime is 251232232219. The next prime is 251232232253. The reversal of 251232232232 is 232232232152.

It is a junction number, because it is equal to n+sod(n) for n = 251232232195 and 251232232204.

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, 65696894 + ... + 65700717.

It is an arithmetic number, because the mean of its divisors is an integer number (29564462700).

Almost surely, 2^251232232232 is an apocalyptic number.

It is an amenable number.

251232232232 is a deficient number, since it is larger than the sum of its proper divisors (221799170968).

251232232232 is a wasteful number, since it uses less digits than its factorization.

251232232232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131397856 (or 131397852 counting only the distinct ones).

The product of its digits is 17280, while the sum is 29.

Adding to 251232232232 its reverse (232232232152), we get a palindrome (483464464384).

The spelling of 251232232232 in words is "two hundred fifty-one billion, two hundred thirty-two million, two hundred thirty-two thousand, two hundred thirty-two".