63215875 has 8 divisors (see below), whose sum is σ = 78893568. Its totient is φ = 50572600.

The previous prime is 63215863. The next prime is 63215897. The reversal of 63215875 is 57851236.

It is not a de Polignac number, because 63215875 - 2⁹ = 63215363 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252739 + ... + 252988.

It is an arithmetic number, because the mean of its divisors is an integer number (9861696).

Almost surely, 2^63215875 is an apocalyptic number.

63215875 is a deficient number, since it is larger than the sum of its proper divisors (15677693).

63215875 is an equidigital number, since it uses as much as digits as its factorization.

63215875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505742 (or 505732 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 63215875 is about 7950.8411504696. The cubic root of 63215875 is about 398.3596888934.

The spelling of 63215875 in words is "sixty-three million, two hundred fifteen thousand, eight hundred seventy-five".