55167710521 has 8 divisors (see below), whose sum is σ = 68780522304. Its totient is φ = 42987826320.

The previous prime is 55167710503. The next prime is 55167710527. The reversal of 55167710521 is 12501776155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55167710521 - 2⁵ = 55167710489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55167710527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358231810 + ... + 358231963.

It is an arithmetic number, because the mean of its divisors is an integer number (8597565288).

Almost surely, 2^55167710521 is an apocalyptic number.

It is an amenable number.

55167710521 is a deficient number, since it is larger than the sum of its proper divisors (13612811783).

55167710521 is a wasteful number, since it uses less digits than its factorization.

55167710521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716463791.

The product of its (nonzero) digits is 73500, while the sum is 40.

The spelling of 55167710521 in words is "fifty-five billion, one hundred sixty-seven million, seven hundred ten thousand, five hundred twenty-one".