55777107715 has 32 divisors (see below), whose sum is σ = 78908949504. Its totient is φ = 37058567040.

The previous prime is 55777107707. The next prime is 55777107751. The reversal of 55777107715 is 51770177755.

It is not a de Polignac number, because 55777107715 - 2³ = 55777107707 is a prime.

It is a super-2 number, since 2×55777107715² (a number of 22 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 51919 + ... + 338008.

It is an arithmetic number, because the mean of its divisors is an integer number (2465904672).

Almost surely, 2^55777107715 is an apocalyptic number.

55777107715 is a deficient number, since it is larger than the sum of its proper divisors (23131841789).

55777107715 is a wasteful number, since it uses less digits than its factorization.

55777107715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390067.

The product of its (nonzero) digits is 2100875, while the sum is 52.

The spelling of 55777107715 in words is "fifty-five billion, seven hundred seventy-seven million, one hundred seven thousand, seven hundred fifteen".