564475121 has 4 divisors (see below), whose sum is σ = 645114432. Its totient is φ = 483835812.

The previous prime is 564475117. The next prime is 564475127. The reversal of 564475121 is 121574465.

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 564475121 - 2² = 564475117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564475127) 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, 40319645 + ... + 40319658.

It is an arithmetic number, because the mean of its divisors is an integer number (161278608).

Almost surely, 2^564475121 is an apocalyptic number.

It is an amenable number.

564475121 is a deficient number, since it is larger than the sum of its proper divisors (80639311).

564475121 is an equidigital number, since it uses as much as digits as its factorization.

564475121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80639310.

The product of its digits is 33600, while the sum is 35.

The square root of 564475121 is about 23758.6851698489. The cubic root of 564475121 is about 826.4468622128.

The spelling of 564475121 in words is "five hundred sixty-four million, four hundred seventy-five thousand, one hundred twenty-one".