53304431920 has 20 divisors (see below), whose sum is σ = 123932804400. Its totient is φ = 21321772736.

The previous prime is 53304431891. The next prime is 53304431959. The reversal of 53304431920 is 2913440335.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333152620 + ... + 333152779.

It is an arithmetic number, because the mean of its divisors is an integer number (6196640220).

Almost surely, 2^53304431920 is an apocalyptic number.

It is an amenable number.

53304431920 is an abundant number, since it is smaller than the sum of its proper divisors (70628372480).

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

53304431920 is a wasteful number, since it uses less digits than its factorization.

53304431920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666305412 (or 666305406 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 53304431920 in words is "fifty-three billion, three hundred four million, four hundred thirty-one thousand, nine hundred twenty".