551172312 has 48 divisors (see below), whose sum is σ = 1540918080. Its totient is φ = 177796800.

The previous prime is 551172241. The next prime is 551172319. The reversal of 551172312 is 213271155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551172319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121239 + ... + 125702.

It is an arithmetic number, because the mean of its divisors is an integer number (32102460).

Almost surely, 2^551172312 is an apocalyptic number.

It is an amenable number.

551172312 is an abundant number, since it is smaller than the sum of its proper divisors (989745768).

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

551172312 is a wasteful number, since it uses less digits than its factorization.

551172312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246984 (or 246977 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 551172312 is about 23477.0592707008. The cubic root of 551172312 is about 819.9029788046.

The spelling of 551172312 in words is "five hundred fifty-one million, one hundred seventy-two thousand, three hundred twelve".