53889436920 has 64 divisors (see below), whose sum is σ = 176365434240. Its totient is φ = 13064105600.

The previous prime is 53889436919. The next prime is 53889436961. The reversal of 53889436920 is 2963498835.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20411346 + ... + 20413985.

It is an arithmetic number, because the mean of its divisors is an integer number (2755709910).

Almost surely, 2^53889436920 is an apocalyptic number.

It is an amenable number.

53889436920 is an abundant number, since it is smaller than the sum of its proper divisors (122475997320).

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

53889436920 is a wasteful number, since it uses less digits than its factorization.

53889436920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40825356 (or 40825352 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 53889436920 in words is "fifty-three billion, eight hundred eighty-nine million, four hundred thirty-six thousand, nine hundred twenty".