55717031355 has 16 divisors (see below), whose sum is σ = 89163189024. Its totient is φ = 29710437120.

The previous prime is 55717031353. The next prime is 55717031393. The reversal of 55717031355 is 55313071755.

It is not a de Polignac number, because 55717031355 - 2¹ = 55717031353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55717031353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244624 + ... + 413853.

It is an arithmetic number, because the mean of its divisors is an integer number (5572699314).

Almost surely, 2^55717031355 is an apocalyptic number.

55717031355 is a deficient number, since it is larger than the sum of its proper divisors (33446157669).

55717031355 is a wasteful number, since it uses less digits than its factorization.

55717031355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664126.

The product of its (nonzero) digits is 275625, while the sum is 42.

The spelling of 55717031355 in words is "fifty-five billion, seven hundred seventeen million, thirty-one thousand, three hundred fifty-five".