561595457 has 4 divisors (see below), whose sum is σ = 561666816. Its totient is φ = 561524100.

The previous prime is 561595421. The next prime is 561595471. The reversal of 561595457 is 754595165.

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 561595457 - 2⁸ = 561595201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561595417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22169 + ... + 40182.

It is an arithmetic number, because the mean of its divisors is an integer number (140416704).

Almost surely, 2^561595457 is an apocalyptic number.

It is an amenable number.

561595457 is a deficient number, since it is larger than the sum of its proper divisors (71359).

561595457 is an equidigital number, since it uses as much as digits as its factorization.

561595457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71358.

The product of its digits is 945000, while the sum is 47.

The square root of 561595457 is about 23698.0053380026. The cubic root of 561595457 is about 825.0390955455.

It can be divided in two parts, 56159 and 5457, that added together give a palindrome (61616).

The spelling of 561595457 in words is "five hundred sixty-one million, five hundred ninety-five thousand, four hundred fifty-seven".