55577558025 has 48 divisors (see below), whose sum is σ = 111379686720. Its totient is φ = 26946691200.

The previous prime is 55577558017. The next prime is 55577558119. The reversal of 55577558025 is 52085577555.

55577558025 is a `hidden beast` number, since 5 + 5 + 57 + 7 + 5 + 580 + 2 + 5 = 666.

It is not a de Polignac number, because 55577558025 - 2³ = 55577558017 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 3735172 + ... + 3750021.

It is an arithmetic number, because the mean of its divisors is an integer number (2320410140).

Almost surely, 2^55577558025 is an apocalyptic number.

55577558025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55577558025 is an abundant number, since it is smaller than the sum of its proper divisors (55802128695).

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

55577558025 is a wasteful number, since it uses less digits than its factorization.

55577558025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7485223 (or 7485212 counting only the distinct ones).

The product of its (nonzero) digits is 12250000, while the sum is 54.

The spelling of 55577558025 in words is "fifty-five billion, five hundred seventy-seven million, five hundred fifty-eight thousand, twenty-five".