55251172 has 6 divisors (see below), whose sum is σ = 96689558. Its totient is φ = 27625584.

The previous prime is 55251169. The next prime is 55251181. The reversal of 55251172 is 27115255.

It can be written as a sum of positive squares in only one way, i.e., 41293476 + 13957696 = 6426^2 + 3736^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55251172.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6906393 + ... + 6906400.

Almost surely, 2^55251172 is an apocalyptic number.

It is an amenable number.

55251172 is a deficient number, since it is larger than the sum of its proper divisors (41438386).

55251172 is a wasteful number, since it uses less digits than its factorization.

55251172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13812797 (or 13812795 counting only the distinct ones).

The product of its digits is 3500, while the sum is 28.

The square root of 55251172 is about 7433.1132104926. The cubic root of 55251172 is about 380.8732732296.

The spelling of 55251172 in words is "fifty-five million, two hundred fifty-one thousand, one hundred seventy-two".