561050500457 has 2 divisors, whose sum is σ = 561050500458. Its totient is φ = 561050500456.

The previous prime is 561050500453. The next prime is 561050500541. The reversal of 561050500457 is 754005050165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 542497063936 + 18553436521 = 736544^2 + 136211^2 .

It is a cyclic number.

It is not a de Polignac number, because 561050500457 - 2² = 561050500453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561050500457.

It is not a weakly prime, because it can be changed into another prime (561050500453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280525250228 + 280525250229.

It is an arithmetic number, because the mean of its divisors is an integer number (280525250229).

Almost surely, 2^561050500457 is an apocalyptic number.

It is an amenable number.

561050500457 is a deficient number, since it is larger than the sum of its proper divisors (1).

561050500457 is an equidigital number, since it uses as much as digits as its factorization.

561050500457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105000, while the sum is 38.

The spelling of 561050500457 in words is "five hundred sixty-one billion, fifty million, five hundred thousand, four hundred fifty-seven".