53309960320 has 32 divisors (see below), whose sum is σ = 127444125420. Its totient is φ = 21323983872.

The previous prime is 53309960311. The next prime is 53309960321. The reversal of 53309960320 is 2306990335.

It can be written as a sum of positive squares in 2 ways, for example, as 52382392384 + 927567936 = 228872^2 + 30456^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (53309960321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41647767 + ... + 41649046.

Almost surely, 2^53309960320 is an apocalyptic number.

It is an amenable number.

53309960320 is an abundant number, since it is smaller than the sum of its proper divisors (74134165100).

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

53309960320 is an equidigital number, since it uses as much as digits as its factorization.

53309960320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83296832 (or 83296820 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 40.

The spelling of 53309960320 in words is "fifty-three billion, three hundred nine million, nine hundred sixty thousand, three hundred twenty".