55118725 has 12 divisors (see below), whose sum is σ = 68439940. Its totient is φ = 44035200.

The previous prime is 55118711. The next prime is 55118731. The reversal of 55118725 is 52781155.

It can be written as a sum of positive squares in 6 ways, for example, as 919681 + 54199044 = 959^2 + 7362^2 .

It is not a de Polignac number, because 55118725 - 2⁷ = 55118597 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 32191 + ... + 33859.

Almost surely, 2^55118725 is an apocalyptic number.

It is an amenable number.

55118725 is a deficient number, since it is larger than the sum of its proper divisors (13321215).

55118725 is a wasteful number, since it uses less digits than its factorization.

55118725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000 (or 2995 counting only the distinct ones).

The product of its digits is 14000, while the sum is 34.

The square root of 55118725 is about 7424.1986099511. The cubic root of 55118725 is about 380.5686891314.

The spelling of 55118725 in words is "fifty-five million, one hundred eighteen thousand, seven hundred twenty-five".