53972831920 has 40 divisors (see below), whose sum is σ = 143413526304. Its totient is φ = 18504970752.

The previous prime is 53972831917. The next prime is 53972831929. The reversal of 53972831920 is 2913827935.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (53972831929) 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, 48189469 + ... + 48190588.

Almost surely, 2^53972831920 is an apocalyptic number.

It is an amenable number.

53972831920 is an abundant number, since it is smaller than the sum of its proper divisors (89440694384).

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

53972831920 is a wasteful number, since it uses less digits than its factorization.

53972831920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96380077 (or 96380071 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 53972831920 in words is "fifty-three billion, nine hundred seventy-two million, eight hundred thirty-one thousand, nine hundred twenty".