55173375356 has 24 divisors (see below), whose sum is σ = 111526931376. Its totient is φ = 23603582720.

The previous prime is 55173375317. The next prime is 55173375391. The reversal of 55173375356 is 65357337155.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36879851 + ... + 36881346.

It is an arithmetic number, because the mean of its divisors is an integer number (4646955474).

Almost surely, 2^55173375356 is an apocalyptic number.

It is an amenable number.

55173375356 is an abundant number, since it is smaller than the sum of its proper divisors (56353556020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55173375356 is a wasteful number, since it uses less digits than its factorization.

55173375356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73761229 (or 73761227 counting only the distinct ones).

The product of its digits is 4961250, while the sum is 50.

The spelling of 55173375356 in words is "fifty-five billion, one hundred seventy-three million, three hundred seventy-five thousand, three hundred fifty-six".