551157132 has 12 divisors (see below), whose sum is σ = 1286033336. Its totient is φ = 183719040.

The previous prime is 551157041. The next prime is 551157133. The reversal of 551157132 is 231751155.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 551157132.

It is not an unprimeable number, because it can be changed into a prime (551157133) 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, 22964869 + ... + 22964892.

Almost surely, 2^551157132 is an apocalyptic number.

It is an amenable number.

551157132 is an abundant number, since it is smaller than the sum of its proper divisors (734876204).

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

551157132 is a wasteful number, since it uses less digits than its factorization.

551157132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45929768 (or 45929766 counting only the distinct ones).

The product of its digits is 5250, while the sum is 30.

The square root of 551157132 is about 23476.7359741511. The cubic root of 551157132 is about 819.8954516719.

The spelling of 551157132 in words is "five hundred fifty-one million, one hundred fifty-seven thousand, one hundred thirty-two".