251255444232 has 64 divisors (see below), whose sum is σ = 677436500160. Its totient is φ = 77197420800.

The previous prime is 251255444207. The next prime is 251255444239. The reversal of 251255444232 is 232444552152.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (251255444239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367119 + ... + 798302.

It is an arithmetic number, because the mean of its divisors is an integer number (10584945315).

Almost surely, 2^251255444232 is an apocalyptic number.

It is an amenable number.

251255444232 is an abundant number, since it is smaller than the sum of its proper divisors (426181055928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

251255444232 is a wasteful number, since it uses less digits than its factorization.

251255444232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166134 (or 1166130 counting only the distinct ones).

The product of its digits is 384000, while the sum is 39.

Adding to 251255444232 its reverse (232444552152), we get a palindrome (483699996384).

The spelling of 251255444232 in words is "two hundred fifty-one billion, two hundred fifty-five million, four hundred forty-four thousand, two hundred thirty-two".