55568172 has 48 divisors (see below), whose sum is σ = 149772672. Its totient is φ = 15847680.

The previous prime is 55568171. The next prime is 55568173. The reversal of 55568172 is 27186555.

It is an interprime number because it is at equal distance from previous prime (55568171) and next prime (55568173).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55568172.

It is not an unprimeable number, because it can be changed into a prime (55568171) 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, 10138 + ... + 14625.

It is an arithmetic number, because the mean of its divisors is an integer number (3120264).

Almost surely, 2^55568172 is an apocalyptic number.

It is an amenable number.

55568172 is an abundant number, since it is smaller than the sum of its proper divisors (94204500).

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

55568172 is a wasteful number, since it uses less digits than its factorization.

55568172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24798 (or 24796 counting only the distinct ones).

The product of its digits is 84000, while the sum is 39.

The square root of 55568172 is about 7454.4062137772. The cubic root of 55568172 is about 381.6002964455.

The spelling of 55568172 in words is "fifty-five million, five hundred sixty-eight thousand, one hundred seventy-two".