55513125 has 60 divisors (see below), whose sum is σ = 102342240. Its totient is φ = 28980000.

The previous prime is 55513123. The next prime is 55513141. The reversal of 55513125 is 52131555.

It is not a de Polignac number, because 55513125 - 2¹ = 55513123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55513121) by changing a digit.

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 59 ways as a sum of consecutive naturals, for example, 399306 + ... + 399444.

It is an arithmetic number, because the mean of its divisors is an integer number (1705704).

Almost surely, 2^55513125 is an apocalyptic number.

It is an amenable number.

55513125 is a deficient number, since it is larger than the sum of its proper divisors (46829115).

55513125 is a wasteful number, since it uses less digits than its factorization.

55513125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 218 counting only the distinct ones).

The product of its digits is 3750, while the sum is 27.

The square root of 55513125 is about 7450.7130531245. The cubic root of 55513125 is about 381.4742477208.

The spelling of 55513125 in words is "fifty-five million, five hundred thirteen thousand, one hundred twenty-five".