55174770817 has 16 divisors (see below), whose sum is σ = 57760128000. Its totient is φ = 52605234000.

The previous prime is 55174770809. The next prime is 55174770857. The reversal of 55174770817 is 71807747155.

It is a cyclic number.

It is not a de Polignac number, because 55174770817 - 2³ = 55174770809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55174770857) 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, 11141692 + ... + 11146642.

It is an arithmetic number, because the mean of its divisors is an integer number (3610008000).

Almost surely, 2^55174770817 is an apocalyptic number.

It is an amenable number.

55174770817 is a deficient number, since it is larger than the sum of its proper divisors (2585357183).

55174770817 is a wasteful number, since it uses less digits than its factorization.

55174770817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6444.

The product of its (nonzero) digits is 1920800, while the sum is 52.

The spelling of 55174770817 in words is "fifty-five billion, one hundred seventy-four million, seven hundred seventy thousand, eight hundred seventeen".