56021383088055 has 96 divisors (see below), whose sum is σ = 122239774725120. Its totient is φ = 23055578519040.

The previous prime is 56021383088051. The next prime is 56021383088063. The reversal of 56021383088055 is 55088038312065.

It is a happy number.

56021383088055 is a `hidden beast` number, since 560 + 21 + 3 + 8 + 3 + 0 + 8 + 8 + 0 + 55 = 666.

It is not a de Polignac number, because 56021383088055 - 2² = 56021383088051 is a prime.

It is a super-2 number, since 2×56021383088055² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56021383087992 and 56021383088010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56021383088051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 78127510 + ... + 78841299.

It is an arithmetic number, because the mean of its divisors is an integer number (1273330986720).

Almost surely, 2^{56021383088055} is an apocalyptic number.

56021383088055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56021383088055 is an abundant number, since it is smaller than the sum of its proper divisors (66218391637065).

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

56021383088055 is a wasteful number, since it uses less digits than its factorization.

56021383088055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156968941 (or 156968938 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 54.

The spelling of 56021383088055 in words is "fifty-six trillion, twenty-one billion, three hundred eighty-three million, eighty-eight thousand, fifty-five".