55505275 has 24 divisors (see below), whose sum is σ = 81378720. Its totient is φ = 36744960.

The previous prime is 55505227. The next prime is 55505297. The reversal of 55505275 is 57250555.

It is not a de Polignac number, because 55505275 - 2¹⁷ = 55374203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55505275.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 394 + ... + 10543.

It is an arithmetic number, because the mean of its divisors is an integer number (3390780).

Almost surely, 2^55505275 is an apocalyptic number.

55505275 is a deficient number, since it is larger than the sum of its proper divisors (25873445).

55505275 is a wasteful number, since it uses less digits than its factorization.

55505275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10983 (or 10978 counting only the distinct ones).

The product of its (nonzero) digits is 43750, while the sum is 34.

The square root of 55505275 is about 7450.1862392829. The cubic root of 55505275 is about 381.4562657029.

The spelling of 55505275 in words is "fifty-five million, five hundred five thousand, two hundred seventy-five".