564431801 has 4 divisors (see below), whose sum is σ = 565304832. Its totient is φ = 563558772.

The previous prime is 564431797. The next prime is 564431827. The reversal of 564431801 is 108134465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 564431801 - 2² = 564431797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564436801) 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, 435545 + ... + 436838.

It is an arithmetic number, because the mean of its divisors is an integer number (141326208).

Almost surely, 2^564431801 is an apocalyptic number.

It is an amenable number.

564431801 is a deficient number, since it is larger than the sum of its proper divisors (873031).

564431801 is an equidigital number, since it uses as much as digits as its factorization.

564431801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873030.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 564431801 is about 23757.7734857457. The cubic root of 564431801 is about 826.4257200977.

The spelling of 564431801 in words is "five hundred sixty-four million, four hundred thirty-one thousand, eight hundred one".