53215584 has 48 divisors (see below), whose sum is σ = 140107968. Its totient is φ = 17685632.

The previous prime is 53215567. The next prime is 53215597. The reversal of 53215584 is 48551235.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×53215584² = 5663796760922112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44239 + ... + 45425.

It is an arithmetic number, because the mean of its divisors is an integer number (2918916).

Almost surely, 2^53215584 is an apocalyptic number.

It is an amenable number.

53215584 is an abundant number, since it is smaller than the sum of its proper divisors (86892384).

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

53215584 is a wasteful number, since it uses less digits than its factorization.

53215584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667 (or 1659 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The square root of 53215584 is about 7294.9012330531. The cubic root of 53215584 is about 376.1371915241.

The spelling of 53215584 in words is "fifty-three million, two hundred fifteen thousand, five hundred eighty-four".