64565063 has 4 divisors (see below), whose sum is σ = 64714608. Its totient is φ = 64415520.

The previous prime is 64565051. The next prime is 64565131. The reversal of 64565063 is 36056546.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64565063 - 2⁸ = 64564807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64565003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74123 + ... + 74988.

It is an arithmetic number, because the mean of its divisors is an integer number (16178652).

Almost surely, 2^64565063 is an apocalyptic number.

64565063 is a deficient number, since it is larger than the sum of its proper divisors (149545).

64565063 is a wasteful number, since it uses less digits than its factorization.

64565063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149544.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 64565063 is about 8035.2388265689. The cubic root of 64565063 is about 401.1737668925.

The spelling of 64565063 in words is "sixty-four million, five hundred sixty-five thousand, sixty-three".