53305163520 has 288 divisors, whose sum is σ = 198539443200. Its totient is φ = 12183736320.

The previous prime is 53305163497. The next prime is 53305163539. The reversal of 53305163520 is 2536150335.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1296885 + ... + 1337355.

Almost surely, 2^53305163520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53305163520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99269721600).

53305163520 is an abundant number, since it is smaller than the sum of its proper divisors (145234279680).

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

53305163520 is an equidigital number, since it uses as much as digits as its factorization.

53305163520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40516 (or 40488 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 33.

The spelling of 53305163520 in words is "fifty-three billion, three hundred five million, one hundred sixty-three thousand, five hundred twenty".