55615075 has 12 divisors (see below), whose sum is σ = 73019880. Its totient is φ = 41874560.

The previous prime is 55615067. The next prime is 55615093. The reversal of 55615075 is 57051655.

55615075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55615075 - 2³ = 55615067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55615075.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65005 + ... + 65854.

It is an arithmetic number, because the mean of its divisors is an integer number (6084990).

Almost surely, 2^55615075 is an apocalyptic number.

55615075 is a deficient number, since it is larger than the sum of its proper divisors (17404805).

55615075 is a wasteful number, since it uses less digits than its factorization.

55615075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130886 (or 130881 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 34.

The square root of 55615075 is about 7457.5515418936. The cubic root of 55615075 is about 381.7076310622.

The spelling of 55615075 in words is "fifty-five million, six hundred fifteen thousand, seventy-five".