551079913122 has 54 divisors (see below), whose sum is σ = 1227408647283. Its totient is φ = 178690826304.

The previous prime is 551079913099. The next prime is 551079913127. The reversal of 551079913122 is 221319970155.

551079913122 is a `hidden beast` number, since 5 + 510 + 7 + 9 + 9 + 1 + 3 + 122 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 175275358281 + 375804554841 = 418659^2 + 613029^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=524919.

It is not an unprimeable number, because it can be changed into a prime (551079913127) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 116529654 + ... + 116534382.

Almost surely, 2^551079913122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551079913122

551079913122 is an abundant number, since it is smaller than the sum of its proper divisors (676328734161).

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

551079913122 is an frugal number, since it uses more digits than its factorization.

551079913122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9540 (or 4771 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 45.

The spelling of 551079913122 in words is "five hundred fifty-one billion, seventy-nine million, nine hundred thirteen thousand, one hundred twenty-two".