55637020560 has 320 divisors, whose sum is σ = 198757278720. Its totient is φ = 12732733440.

The previous prime is 55637020511. The next prime is 55637020573. The reversal of 55637020560 is 6502073655.

55637020560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15397314 + ... + 15400926.

It is an arithmetic number, because the mean of its divisors is an integer number (621116496).

Almost surely, 2^55637020560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55637020560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99378639360).

55637020560 is an abundant number, since it is smaller than the sum of its proper divisors (143120258160).

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

55637020560 is a wasteful number, since it uses less digits than its factorization.

55637020560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966 (or 3960 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 39.

The spelling of 55637020560 in words is "fifty-five billion, six hundred thirty-seven million, twenty thousand, five hundred sixty".