551398232 has 32 divisors (see below), whose sum is σ = 1288984320. Its totient is φ = 214830240.

The previous prime is 551398201. The next prime is 551398241. The reversal of 551398232 is 232893155.

551398232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446948 + ... + 448179.

It is an arithmetic number, because the mean of its divisors is an integer number (40280760).

Almost surely, 2^551398232 is an apocalyptic number.

It is an amenable number.

551398232 is an abundant number, since it is smaller than the sum of its proper divisors (737586088).

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

551398232 is a wasteful number, since it uses less digits than its factorization.

551398232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895151 (or 895147 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 551398232 is about 23481.8702832632. The cubic root of 551398232 is about 820.0149868369.

The spelling of 551398232 in words is "five hundred fifty-one million, three hundred ninety-eight thousand, two hundred thirty-two".