55318730620 has 24 divisors (see below), whose sum is σ = 116173764000. Its totient is φ = 22126648512.

The previous prime is 55318730587. The next prime is 55318730627. The reversal of 55318730620 is 2603781355.

55318730620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55318730627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949081 + ... + 1005679.

It is an arithmetic number, because the mean of its divisors is an integer number (4840573500).

Almost surely, 2^55318730620 is an apocalyptic number.

It is an amenable number.

55318730620 is an abundant number, since it is smaller than the sum of its proper divisors (60855033380).

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

55318730620 is a wasteful number, since it uses less digits than its factorization.

55318730620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105477 (or 105475 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 55318730620 in words is "fifty-five billion, three hundred eighteen million, seven hundred thirty thousand, six hundred twenty".