564636403 has 6 divisors (see below), whose sum is σ = 573261284. Its totient is φ = 556017396.

The previous prime is 564636389. The next prime is 564636437. The reversal of 564636403 is 304636465.

It is a de Polignac number, because none of the positive numbers 2^k-564636403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564636493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 193050 + ... + 195952.

Almost surely, 2^564636403 is an apocalyptic number.

564636403 is a deficient number, since it is larger than the sum of its proper divisors (8624881).

564636403 is an frugal number, since it uses more digits than its factorization.

564636403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5873 (or 2970 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 564636403 is about 23762.0790967457. The cubic root of 564636403 is about 826.5255655989.

The spelling of 564636403 in words is "five hundred sixty-four million, six hundred thirty-six thousand, four hundred three".