53255760 has 80 divisors (see below), whose sum is σ = 167935680. Its totient is φ = 13957120.

The previous prime is 53255759. The next prime is 53255771. The reversal of 53255760 is 6755235.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12280 + ... + 16040.

It is an arithmetic number, because the mean of its divisors is an integer number (2099196).

Almost surely, 2^53255760 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 53255760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83967840).

53255760 is an abundant number, since it is smaller than the sum of its proper divisors (114679920).

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

53255760 is a wasteful number, since it uses less digits than its factorization.

53255760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836 (or 3830 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 53255760 is about 7297.6544176879. The cubic root of 53255760 is about 376.2318247457.

The spelling of 53255760 in words is "fifty-three million, two hundred fifty-five thousand, seven hundred sixty".