564488251 has 2 divisors, whose sum is σ = 564488252. Its totient is φ = 564488250.

The previous prime is 564488227. The next prime is 564488257. The reversal of 564488251 is 152884465.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564488251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 564488198 and 564488207.

It is not a weakly prime, because it can be changed into another prime (564488257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282244125 + 282244126.

It is an arithmetic number, because the mean of its divisors is an integer number (282244126).

Almost surely, 2^564488251 is an apocalyptic number.

564488251 is a deficient number, since it is larger than the sum of its proper divisors (1).

564488251 is an equidigital number, since it uses as much as digits as its factorization.

564488251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 307200, while the sum is 43.

The square root of 564488251 is about 23758.9614882469. The cubic root of 564488251 is about 826.4532700318.

The spelling of 564488251 in words is "five hundred sixty-four million, four hundred eighty-eight thousand, two hundred fifty-one".