55020511040 has 56 divisors (see below), whose sum is σ = 142928291232. Its totient is φ = 20007457280.

The previous prime is 55020510991. The next prime is 55020511069. The reversal of 55020511040 is 4011502055.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55020510997 and 55020511015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7811894 + ... + 7818933.

Almost surely, 2^55020511040 is an apocalyptic number.

It is an amenable number.

55020511040 is an abundant number, since it is smaller than the sum of its proper divisors (87907780192).

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

55020511040 is a wasteful number, since it uses less digits than its factorization.

55020511040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15630855 (or 15630845 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The spelling of 55020511040 in words is "fifty-five billion, twenty million, five hundred eleven thousand, forty".