56417427855 has 24 divisors (see below), whose sum is σ = 101412070032. Its totient is φ = 30089294208.

The previous prime is 56417427827. The next prime is 56417427917. The reversal of 56417427855 is 55872471465.

It is a happy number.

56417427855 is a `hidden beast` number, since 564 + 1 + 7 + 4 + 2 + 78 + 5 + 5 = 666.

It is not a de Polignac number, because 56417427855 - 2¹⁸ = 56417165711 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 23 ways as a sum of consecutive naturals, for example, 23215834 + ... + 23218263.

It is an arithmetic number, because the mean of its divisors is an integer number (4225502918).

Almost surely, 2^56417427855 is an apocalyptic number.

56417427855 is a deficient number, since it is larger than the sum of its proper divisors (44994642177).

56417427855 is an equidigital number, since it uses as much as digits as its factorization.

56417427855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46434117 (or 46434105 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 54.

The spelling of 56417427855 in words is "fifty-six billion, four hundred seventeen million, four hundred twenty-seven thousand, eight hundred fifty-five".