551424977100 has 72 divisors (see below), whose sum is σ = 1772729194320. Its totient is φ = 147046659840.

The previous prime is 551424977093. The next prime is 551424977141. The reversal of 551424977100 is 1779424155.

551424977100 is a `hidden beast` number, since 5 + 5 + 142 + 497 + 7 + 10 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102113037 + ... + 102118436.

It is an arithmetic number, because the mean of its divisors is an integer number (24621238810).

Almost surely, 2^551424977100 is an apocalyptic number.

551424977100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

551424977100 is an abundant number, since it is smaller than the sum of its proper divisors (1221304217220).

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

551424977100 is a wasteful number, since it uses less digits than its factorization.

551424977100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204231496 (or 204231483 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 551424977100 in words is "five hundred fifty-one billion, four hundred twenty-four million, nine hundred seventy-seven thousand, one hundred".