56557222205 has 16 divisors (see below), whose sum is σ = 74158200000. Its totient is φ = 41066050560.

The previous prime is 56557222199. The next prime is 56557222369. The reversal of 56557222205 is 50222275565.

It is not a de Polignac number, because 56557222205 - 2²⁶ = 56490113341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796580 + ... + 864669.

It is an arithmetic number, because the mean of its divisors is an integer number (4634887500).

Almost surely, 2^56557222205 is an apocalyptic number.

56557222205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56557222205 is a deficient number, since it is larger than the sum of its proper divisors (17600977795).

56557222205 is a wasteful number, since it uses less digits than its factorization.

56557222205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661884.

The product of its (nonzero) digits is 420000, while the sum is 41.

The spelling of 56557222205 in words is "fifty-six billion, five hundred fifty-seven million, two hundred twenty-two thousand, two hundred five".