53215875 has 24 divisors (see below), whose sum is σ = 95932512. Its totient is φ = 28381200.

The previous prime is 53215867. The next prime is 53215919. The reversal of 53215875 is 57851235.

53215875 is a `hidden beast` number, since 53 + 21 + 587 + 5 = 666.

It is not a de Polignac number, because 53215875 - 2³ = 53215867 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22527 + ... + 24776.

It is an arithmetic number, because the mean of its divisors is an integer number (3997188).

Almost surely, 2^53215875 is an apocalyptic number.

53215875 is a deficient number, since it is larger than the sum of its proper divisors (42716637).

53215875 is a wasteful number, since it uses less digits than its factorization.

53215875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47324 (or 47311 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 53215875 is about 7294.9211784638. The cubic root of 53215875 is about 376.1378771361.

The spelling of 53215875 in words is "fifty-three million, two hundred fifteen thousand, eight hundred seventy-five".