551233172 has 24 divisors (see below), whose sum is σ = 1103000640. Its totient is φ = 236128320.

The previous prime is 551233171. The next prime is 551233217. The reversal of 551233172 is 271332155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551233171) 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 7 ways as a sum of consecutive naturals, for example, 81272 + ... + 87792.

It is an arithmetic number, because the mean of its divisors is an integer number (45958360).

Almost surely, 2^551233172 is an apocalyptic number.

It is an amenable number.

551233172 is an abundant number, since it is smaller than the sum of its proper divisors (551767468).

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

551233172 is a wasteful number, since it uses less digits than its factorization.

551233172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9551 (or 9549 counting only the distinct ones).

The product of its digits is 6300, while the sum is 29.

The square root of 551233172 is about 23478.3553938516. The cubic root of 551233172 is about 819.9331553681.

The spelling of 551233172 in words is "five hundred fifty-one million, two hundred thirty-three thousand, one hundred seventy-two".