55004775 has 48 divisors (see below), whose sum is σ = 110064384. Its totient is φ = 23662080.

The previous prime is 55004767. The next prime is 55004797. The reversal of 55004775 is 57740055.

It is not a de Polignac number, because 55004775 - 2³ = 55004767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5844 + ... + 12006.

It is an arithmetic number, because the mean of its divisors is an integer number (2293008).

Almost surely, 2^55004775 is an apocalyptic number.

55004775 is an abundant number, since it is smaller than the sum of its proper divisors (55059609).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55004775 is a wasteful number, since it uses less digits than its factorization.

55004775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200 (or 6195 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 55004775 is about 7416.5204105429. The cubic root of 55004775 is about 380.3062512716.

The spelling of 55004775 in words is "fifty-five million, four thousand, seven hundred seventy-five".