55881536635026 has 32 divisors (see below), whose sum is σ = 124181507075520. Its totient is φ = 18627131695392.

The previous prime is 55881536635021. The next prime is 55881536635063. The reversal of 55881536635026 is 62053663518855.

55881536635026 is a `hidden beast` number, since 5 + 5 + 88 + 15 + 36 + 6 + 3 + 502 + 6 = 666.

It is a super-2 number, since 2×55881536635026² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55881536635021) by changing a digit.

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, 25080606 + ... + 27217638.

It is an arithmetic number, because the mean of its divisors is an integer number (3880672096110).

Almost surely, 2^{55881536635026} is an apocalyptic number.

55881536635026 is an abundant number, since it is smaller than the sum of its proper divisors (68299970440494).

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

55881536635026 is a wasteful number, since it uses less digits than its factorization.

55881536635026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621287 (or 2621281 counting only the distinct ones).

The product of its (nonzero) digits is 155520000, while the sum is 63.

The spelling of 55881536635026 in words is "fifty-five trillion, eight hundred eighty-one billion, five hundred thirty-six million, six hundred thirty-five thousand, twenty-six".