63575994 has 32 divisors (see below), whose sum is σ = 131503680. Its totient is φ = 20476800.

The previous prime is 63575989. The next prime is 63575999. The reversal of 63575994 is 49957536.

It is an interprime number because it is at equal distance from previous prime (63575989) and next prime (63575999).

It is not an unprimeable number, because it can be changed into a prime (63575999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25629 + ... + 27999.

It is an arithmetic number, because the mean of its divisors is an integer number (4109490).

Almost surely, 2^63575994 is an apocalyptic number.

63575994 is an abundant number, since it is smaller than the sum of its proper divisors (67927686).

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

63575994 is a wasteful number, since it uses less digits than its factorization.

63575994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526.

The product of its digits is 1020600, while the sum is 48.

The square root of 63575994 is about 7973.4555871341. The cubic root of 63575994 is about 399.1146962052.

The spelling of 63575994 in words is "sixty-three million, five hundred seventy-five thousand, nine hundred ninety-four".