564661495 has 4 divisors (see below), whose sum is σ = 677593800. Its totient is φ = 451729192.

The previous prime is 564661469. The next prime is 564661501. The reversal of 564661495 is 594166465.

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 564661495 - 2⁵ = 564661463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56466145 + ... + 56466154.

It is an arithmetic number, because the mean of its divisors is an integer number (169398450).

Almost surely, 2^564661495 is an apocalyptic number.

564661495 is a deficient number, since it is larger than the sum of its proper divisors (112932305).

564661495 is a wasteful number, since it uses less digits than its factorization.

564661495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112932304.

The product of its digits is 777600, while the sum is 46.

The square root of 564661495 is about 23762.6070749823. The cubic root of 564661495 is about 826.5378088007.

The spelling of 564661495 in words is "five hundred sixty-four million, six hundred sixty-one thousand, four hundred ninety-five".