551772500227 has 16 divisors (see below), whose sum is σ = 602298417952. Its totient is φ = 502435353600.

The previous prime is 551772500177. The next prime is 551772500299. The reversal of 551772500227 is 722005277155.

It is a cyclic number.

It is not a de Polignac number, because 551772500227 - 2³⁹ = 2016686339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551772500527) 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 15 ways as a sum of consecutive naturals, for example, 325524 + ... + 1099777.

It is an arithmetic number, because the mean of its divisors is an integer number (37643651122).

Almost surely, 2^551772500227 is an apocalyptic number.

551772500227 is a deficient number, since it is larger than the sum of its proper divisors (50525917725).

551772500227 is a wasteful number, since it uses less digits than its factorization.

551772500227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425718.

The product of its (nonzero) digits is 343000, while the sum is 43.

The spelling of 551772500227 in words is "five hundred fifty-one billion, seven hundred seventy-two million, five hundred thousand, two hundred twenty-seven".