251235054232 has 16 divisors (see below), whose sum is σ = 475234451640. Its totient is φ = 124505867136.

The previous prime is 251235054211. The next prime is 251235054233. The reversal of 251235054232 is 232450532152.

It is a super-2 number, since 2×251235054232² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251235054233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138956538 + ... + 138958345.

Almost surely, 2^251235054232 is an apocalyptic number.

It is an amenable number.

251235054232 is a deficient number, since it is larger than the sum of its proper divisors (223999397408).

251235054232 is a wasteful number, since it uses less digits than its factorization.

251235054232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277915002 (or 277914998 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 251235054232 its reverse (232450532152), we get a palindrome (483685586384).

The spelling of 251235054232 in words is "two hundred fifty-one billion, two hundred thirty-five million, fifty-four thousand, two hundred thirty-two".