53921816452 has 24 divisors (see below), whose sum is σ = 114187377024. Its totient is φ = 21749976192.

The previous prime is 53921816447. The next prime is 53921816453. The reversal of 53921816452 is 25461812935.

It is not an unprimeable number, because it can be changed into a prime (53921816453) 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, 56640088 + ... + 56641039.

It is an arithmetic number, because the mean of its divisors is an integer number (4757807376).

Almost surely, 2^53921816452 is an apocalyptic number.

It is an amenable number.

53921816452 is an abundant number, since it is smaller than the sum of its proper divisors (60265560572).

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

53921816452 is a wasteful number, since it uses less digits than its factorization.

53921816452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113281155 (or 113281153 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The spelling of 53921816452 in words is "fifty-three billion, nine hundred twenty-one million, eight hundred sixteen thousand, four hundred fifty-two".