55167770173 has 4 divisors (see below), whose sum is σ = 55181494108. Its totient is φ = 55154046240.

The previous prime is 55167770113. The next prime is 55167770179. The reversal of 55167770173 is 37107776155.

It is a happy number.

55167770173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16605415044 + 38562355129 = 128862^2 + 196373^2 .

It is a cyclic number.

It is not a de Polignac number, because 55167770173 - 2²¹ = 55165673021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55167770179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6855936 + ... + 6863977.

It is an arithmetic number, because the mean of its divisors is an integer number (13795373527).

Almost surely, 2^55167770173 is an apocalyptic number.

It is an amenable number.

55167770173 is a deficient number, since it is larger than the sum of its proper divisors (13723935).

55167770173 is a wasteful number, since it uses less digits than its factorization.

55167770173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13723934.

The product of its (nonzero) digits is 1080450, while the sum is 49.

The spelling of 55167770173 in words is "fifty-five billion, one hundred sixty-seven million, seven hundred seventy thousand, one hundred seventy-three".