551232422356 has 96 divisors (see below), whose sum is σ = 1256481434880. Its totient is φ = 205306752000.

The previous prime is 551232422297. The next prime is 551232422371. The reversal of 551232422356 is 653224232155.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 596616 + ... + 1207648.

It is an arithmetic number, because the mean of its divisors is an integer number (13088348280).

Almost surely, 2^551232422356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551232422356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628240717440).

551232422356 is an abundant number, since it is smaller than the sum of its proper divisors (705249012524).

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

551232422356 is a wasteful number, since it uses less digits than its factorization.

551232422356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611185 (or 611183 counting only the distinct ones).

The product of its digits is 432000, while the sum is 40.

The spelling of 551232422356 in words is "five hundred fifty-one billion, two hundred thirty-two million, four hundred twenty-two thousand, three hundred fifty-six".