551172832 has 24 divisors (see below), whose sum is σ = 1240139376. Its totient is φ = 236216832.

The previous prime is 551172829. The next prime is 551172833. The reversal of 551172832 is 238271155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551172833) 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 3 ways as a sum of consecutive naturals, for example, 1230073 + ... + 1230520.

It is an arithmetic number, because the mean of its divisors is an integer number (51672474).

Almost surely, 2^551172832 is an apocalyptic number.

It is an amenable number.

551172832 is an abundant number, since it is smaller than the sum of its proper divisors (688966544).

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

551172832 is a wasteful number, since it uses less digits than its factorization.

551172832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460610 (or 2460602 counting only the distinct ones).

The product of its digits is 16800, while the sum is 34.

The square root of 551172832 is about 23477.0703453391. The cubic root of 551172832 is about 819.9032366486.

The spelling of 551172832 in words is "five hundred fifty-one million, one hundred seventy-two thousand, eight hundred thirty-two".