55775364 has 12 divisors (see below), whose sum is σ = 130142544. Its totient is φ = 18591784.

The previous prime is 55775359. The next prime is 55775371. The reversal of 55775364 is 46357755.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×55775364² = 6221782458664992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2323962 + ... + 2323985.

It is an arithmetic number, because the mean of its divisors is an integer number (10845212).

Almost surely, 2^55775364 is an apocalyptic number.

It is an amenable number.

55775364 is an abundant number, since it is smaller than the sum of its proper divisors (74367180).

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

55775364 is a wasteful number, since it uses less digits than its factorization.

55775364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647954 (or 4647952 counting only the distinct ones).

The product of its digits is 441000, while the sum is 42.

The square root of 55775364 is about 7468.2905674592. The cubic root of 55775364 is about 382.0739876607.

The spelling of 55775364 in words is "fifty-five million, seven hundred seventy-five thousand, three hundred sixty-four".