63564513 has 8 divisors (see below), whose sum is σ = 89738208. Its totient is φ = 39883584.

The previous prime is 63564509. The next prime is 63564517. The reversal of 63564513 is 31546536.

It is an interprime number because it is at equal distance from previous prime (63564509) and next prime (63564517).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63564513 - 2² = 63564509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63564517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623131 + ... + 623232.

It is an arithmetic number, because the mean of its divisors is an integer number (11217276).

Almost surely, 2^63564513 is an apocalyptic number.

It is an amenable number.

63564513 is a deficient number, since it is larger than the sum of its proper divisors (26173695).

63564513 is a wasteful number, since it uses less digits than its factorization.

63564513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246383.

The product of its digits is 32400, while the sum is 33.

The square root of 63564513 is about 7972.7356032920. The cubic root of 63564513 is about 399.0906697795.

The spelling of 63564513 in words is "sixty-three million, five hundred sixty-four thousand, five hundred thirteen".