54921656220 has 96 divisors (see below), whose sum is σ = 165496032576. Its totient is φ = 13558272000.

The previous prime is 54921656191. The next prime is 54921656239. The reversal of 54921656220 is 2265612945.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379131 + ... + 503570.

It is an arithmetic number, because the mean of its divisors is an integer number (1723917006).

Almost surely, 2^54921656220 is an apocalyptic number.

It is an amenable number.

54921656220 is an abundant number, since it is smaller than the sum of its proper divisors (110574376356).

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

54921656220 is a wasteful number, since it uses less digits than its factorization.

54921656220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882791 (or 882789 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 54921656220 in words is "fifty-four billion, nine hundred twenty-one million, six hundred fifty-six thousand, two hundred twenty".