55335535520220 has 72 divisors (see below), whose sum is σ = 172387641308064. Its totient is φ = 14357328133248.

The previous prime is 55335535520201. The next prime is 55335535520249. The reversal of 55335535520220 is 2202553553355.

55335535520220 is a `hidden beast` number, since 5 + 5 + 3 + 3 + 55 + 355 + 20 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 4154312824 + ... + 4154326143.

Almost surely, 2^{55335535520220} is an apocalyptic number.

It is an amenable number.

55335535520220 is an abundant number, since it is smaller than the sum of its proper divisors (117052105787844).

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

55335535520220 is a wasteful number, since it uses less digits than its factorization.

55335535520220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8308639019 (or 8308639014 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 45.

The spelling of 55335535520220 in words is "fifty-five trillion, three hundred thirty-five billion, five hundred thirty-five million, five hundred twenty thousand, two hundred twenty".