54557065720 has 32 divisors (see below), whose sum is σ = 129974187600. Its totient is φ = 20539130368.

The previous prime is 54557065687. The next prime is 54557065729. The reversal of 54557065720 is 2756075545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54557065729) 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, 40114810 + ... + 40116169.

Almost surely, 2^54557065720 is an apocalyptic number.

It is an amenable number.

54557065720 is an abundant number, since it is smaller than the sum of its proper divisors (75417121880).

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

54557065720 is a wasteful number, since it uses less digits than its factorization.

54557065720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80231007 (or 80231003 counting only the distinct ones).

The product of its (nonzero) digits is 1470000, while the sum is 46.

The spelling of 54557065720 in words is "fifty-four billion, five hundred fifty-seven million, sixty-five thousand, seven hundred twenty".