55479433590 has 48 divisors (see below), whose sum is σ = 164853175968. Its totient is φ = 12681013248.

The previous prime is 55479433577. The next prime is 55479433609. The reversal of 55479433590 is 9533497455.

55479433590 is a `hidden beast` number, since 5 + 5 + 4 + 7 + 9 + 43 + 3 + 590 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44030667 + ... + 44031926.

It is an arithmetic number, because the mean of its divisors is an integer number (3434441166).

Almost surely, 2^55479433590 is an apocalyptic number.

55479433590 is an abundant number, since it is smaller than the sum of its proper divisors (109373742378).

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

55479433590 is a wasteful number, since it uses less digits than its factorization.

55479433590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88062613 (or 88062610 counting only the distinct ones).

The product of its (nonzero) digits is 10206000, while the sum is 54.

The spelling of 55479433590 in words is "fifty-five billion, four hundred seventy-nine million, four hundred thirty-three thousand, five hundred ninety".