53402721980 has 48 divisors (see below), whose sum is σ = 113392288800. Its totient is φ = 21124497408.

The previous prime is 53402721947. The next prime is 53402721989. The reversal of 53402721980 is 8912720435.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53402721989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 988427 + ... + 1041053.

It is an arithmetic number, because the mean of its divisors is an integer number (2362339350).

Almost surely, 2^53402721980 is an apocalyptic number.

It is an amenable number.

53402721980 is an abundant number, since it is smaller than the sum of its proper divisors (59989566820).

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

53402721980 is a wasteful number, since it uses less digits than its factorization.

53402721980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53198 (or 53196 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 53402721980 in words is "fifty-three billion, four hundred two million, seven hundred twenty-one thousand, nine hundred eighty".