55859637636 has 72 divisors (see below), whose sum is σ = 159742293984. Its totient is φ = 16927159680.

The previous prime is 55859637529. The next prime is 55859637649. The reversal of 55859637636 is 63673695855.

55859637636 is a `hidden beast` number, since 5 + 5 + 8 + 596 + 3 + 7 + 6 + 36 = 666.

It is a super-3 number, since 3×55859637636³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2601525 + ... + 2622908.

It is an arithmetic number, because the mean of its divisors is an integer number (2218642972).

Almost surely, 2^55859637636 is an apocalyptic number.

It is an amenable number.

55859637636 is an abundant number, since it is smaller than the sum of its proper divisors (103882656348).

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

55859637636 is a wasteful number, since it uses less digits than its factorization.

55859637636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224463 (or 5224449 counting only the distinct ones).

The product of its digits is 122472000, while the sum is 63.

The spelling of 55859637636 in words is "fifty-five billion, eight hundred fifty-nine million, six hundred thirty-seven thousand, six hundred thirty-six".