55075727556 has 18 divisors (see below), whose sum is σ = 139219200302. Its totient is φ = 18358575840.

The previous prime is 55075727479. The next prime is 55075727579. The reversal of 55075727556 is 65572757055.

It can be written as a sum of positive squares in only one way, i.e., 38683022400 + 16392705156 = 196680^2 + 128034^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 764940625 + ... + 764940696.

Almost surely, 2^55075727556 is an apocalyptic number.

It is an amenable number.

55075727556 is an abundant number, since it is smaller than the sum of its proper divisors (84143472746).

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

55075727556 is a wasteful number, since it uses less digits than its factorization.

55075727556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529881331 (or 1529881326 counting only the distinct ones).

The product of its (nonzero) digits is 12862500, while the sum is 54.

The spelling of 55075727556 in words is "fifty-five billion, seventy-five million, seven hundred twenty-seven thousand, five hundred fifty-six".