55565707172 has 24 divisors (see below), whose sum is σ = 100717296960. Its totient is φ = 26791702560.

The previous prime is 55565707163. The next prime is 55565707181. The reversal of 55565707172 is 27170756555.

It is an interprime number because it is at equal distance from previous prime (55565707163) and next prime (55565707181).

It is a super-3 number, since 3×55565707172³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55565707172.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201248 + ... + 389399.

It is an arithmetic number, because the mean of its divisors is an integer number (4196554040).

Almost surely, 2^55565707172 is an apocalyptic number.

It is an amenable number.

55565707172 is a deficient number, since it is larger than the sum of its proper divisors (45151589788).

55565707172 is a wasteful number, since it uses less digits than its factorization.

55565707172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591491 (or 591489 counting only the distinct ones).

The product of its (nonzero) digits is 2572500, while the sum is 50.

The spelling of 55565707172 in words is "fifty-five billion, five hundred sixty-five million, seven hundred seven thousand, one hundred seventy-two".