63564942 has 32 divisors (see below), whose sum is σ = 149981184. Its totient is φ = 17575200.

The previous prime is 63564931. The next prime is 63564953. The reversal of 63564942 is 24946536.

It is an interprime number because it is at equal distance from previous prime (63564931) and next prime (63564953).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 63564942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23109 + ... + 25712.

It is an arithmetic number, because the mean of its divisors is an integer number (4686912).

Almost surely, 2^63564942 is an apocalyptic number.

63564942 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

63564942 is an abundant number, since it is smaller than the sum of its proper divisors (86416242).

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

63564942 is a wasteful number, since it uses less digits than its factorization.

63564942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48864.

The product of its digits is 155520, while the sum is 39.

The square root of 63564942 is about 7972.7625074374. The cubic root of 63564942 is about 399.0915676050.

The spelling of 63564942 in words is "sixty-three million, five hundred sixty-four thousand, nine hundred forty-two".