565522961 has 2 divisors, whose sum is σ = 565522962. Its totient is φ = 565522960.

The previous prime is 565522957. The next prime is 565522967. The reversal of 565522961 is 169225565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429940225 + 135582736 = 20735^2 + 11644^2 .

It is a cyclic number.

It is not a de Polignac number, because 565522961 - 2² = 565522957 is a prime.

It is not a weakly prime, because it can be changed into another prime (565522967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282761480 + 282761481.

It is an arithmetic number, because the mean of its divisors is an integer number (282761481).

Almost surely, 2^565522961 is an apocalyptic number.

It is an amenable number.

565522961 is a deficient number, since it is larger than the sum of its proper divisors (1).

565522961 is an equidigital number, since it uses as much as digits as its factorization.

565522961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 41.

The square root of 565522961 is about 23780.7266709830. The cubic root of 565522961 is about 826.9579262410.

The spelling of 565522961 in words is "five hundred sixty-five million, five hundred twenty-two thousand, nine hundred sixty-one".