55505300580 has 72 divisors (see below), whose sum is σ = 168428437632. Its totient is φ = 14795931456.

The previous prime is 55505300573. The next prime is 55505300581. The reversal of 55505300580 is 8500350555.

55505300580 is a `hidden beast` number, since 5 + 550 + 53 + 0 + 0 + 58 + 0 = 666.

It is a super-2 number, since 2×55505300580² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55505300581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442339 + ... + 553781.

It is an arithmetic number, because the mean of its divisors is an integer number (2339283856).

Almost surely, 2^55505300580 is an apocalyptic number.

It is an amenable number.

55505300580 is an abundant number, since it is smaller than the sum of its proper divisors (112923137052).

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

55505300580 is a wasteful number, since it uses less digits than its factorization.

55505300580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114225 (or 114220 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 55505300580 in words is "fifty-five billion, five hundred five million, three hundred thousand, five hundred eighty".