56827001655 has 64 divisors (see below), whose sum is σ = 102550717440. Its totient is φ = 29851113600.

The previous prime is 56827001653. The next prime is 56827001717. The reversal of 56827001655 is 55610072865.

56827001655 is a `hidden beast` number, since 568 + 2 + 70 + 0 + 16 + 5 + 5 = 666.

It is not a de Polignac number, because 56827001655 - 2¹ = 56827001653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 56827001655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56827001653) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12295245 + ... + 12299865.

It is an arithmetic number, because the mean of its divisors is an integer number (1602354960).

Almost surely, 2^56827001655 is an apocalyptic number.

56827001655 is a deficient number, since it is larger than the sum of its proper divisors (45723715785).

56827001655 is a wasteful number, since it uses less digits than its factorization.

56827001655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5989 (or 5983 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 56827001655 in words is "fifty-six billion, eight hundred twenty-seven million, one thousand, six hundred fifty-five".