565427501 has 2 divisors, whose sum is σ = 565427502. Its totient is φ = 565427500.

The previous prime is 565427477. The next prime is 565427519. The reversal of 565427501 is 105724565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 478471876 + 86955625 = 21874^2 + 9325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-565427501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565421501) 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 as a sum of consecutive naturals, namely, 282713750 + 282713751.

It is an arithmetic number, because the mean of its divisors is an integer number (282713751).

Almost surely, 2^565427501 is an apocalyptic number.

It is an amenable number.

565427501 is a deficient number, since it is larger than the sum of its proper divisors (1).

565427501 is an equidigital number, since it uses as much as digits as its factorization.

565427501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 565427501 is about 23778.7194987451. The cubic root of 565427501 is about 826.9113935911.

The spelling of 565427501 in words is "five hundred sixty-five million, four hundred twenty-seven thousand, five hundred one".