55005055020 has 48 divisors (see below), whose sum is σ = 171126839520. Its totient is φ = 14668014528.

The previous prime is 55005055019. The next prime is 55005055099. The reversal of 55005055020 is 2055050055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50930067 + ... + 50931146.

It is an arithmetic number, because the mean of its divisors is an integer number (3565142490).

Almost surely, 2^55005055020 is an apocalyptic number.

It is an amenable number.

55005055020 is an abundant number, since it is smaller than the sum of its proper divisors (116121784500).

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

55005055020 is a wasteful number, since it uses less digits than its factorization.

55005055020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101861231 (or 101861223 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 27.

The spelling of 55005055020 in words is "fifty-five billion, five million, fifty-five thousand, twenty".