56105050100055 has 32 divisors (see below), whose sum is σ = 98016486317568. Its totient is φ = 27178095312000.

The previous prime is 56105050100051. The next prime is 56105050100063. The reversal of 56105050100055 is 55000105050165.

It is not a de Polignac number, because 56105050100055 - 2² = 56105050100051 is a prime.

It is a super-2 number, since 2×56105050100055² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 56105050099989 and 56105050100025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56105050100051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152022771 + ... + 152391380.

It is an arithmetic number, because the mean of its divisors is an integer number (3063015197424).

Almost surely, 2^{56105050100055} is an apocalyptic number.

56105050100055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56105050100055 is a deficient number, since it is larger than the sum of its proper divisors (41911436217513).

56105050100055 is a wasteful number, since it uses less digits than its factorization.

56105050100055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304415287.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 56105050100055 in words is "fifty-six trillion, one hundred five billion, fifty million, one hundred thousand, fifty-five".