63875975 has 12 divisors (see below), whose sum is σ = 79305936. Its totient is φ = 51036480.

The previous prime is 63875969. The next prime is 63875989. The reversal of 63875975 is 57957836.

It is a happy number.

It is not a de Polignac number, because 63875975 - 2¹⁸ = 63613831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34934 + ... + 36716.

It is an arithmetic number, because the mean of its divisors is an integer number (6608828).

Almost surely, 2^63875975 is an apocalyptic number.

63875975 is a deficient number, since it is larger than the sum of its proper divisors (15429961).

63875975 is a wasteful number, since it uses less digits than its factorization.

63875975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226 (or 3221 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 50.

The square root of 63875975 is about 7992.2446784367. The cubic root of 63875975 is about 399.7414474958.

The spelling of 63875975 in words is "sixty-three million, eight hundred seventy-five thousand, nine hundred seventy-five".