564454321 has 4 divisors (see below), whose sum is σ = 566235252. Its totient is φ = 562673392.

The previous prime is 564454309. The next prime is 564454333. The reversal of 564454321 is 123454465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123454465 = 5 ⋅24690893.

It is an interprime number because it is at equal distance from previous prime (564454309) and next prime (564454333).

It can be written as a sum of positive squares in 2 ways, for example, as 248503696 + 315950625 = 15764^2 + 17775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564454321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564454381) 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, 889990 + ... + 890623.

It is an arithmetic number, because the mean of its divisors is an integer number (141558813).

Almost surely, 2^564454321 is an apocalyptic number.

It is an amenable number.

564454321 is a deficient number, since it is larger than the sum of its proper divisors (1780931).

564454321 is a wasteful number, since it uses less digits than its factorization.

564454321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780930.

The product of its digits is 57600, while the sum is 34.

The square root of 564454321 is about 23758.2474311554. The cubic root of 564454321 is about 826.4367110090.

The spelling of 564454321 in words is "five hundred sixty-four million, four hundred fifty-four thousand, three hundred twenty-one".