561423225253493 has 2 divisors, whose sum is σ = 561423225253494. Its totient is φ = 561423225253492.

The previous prime is 561423225253487. The next prime is 561423225253559. The reversal of 561423225253493 is 394352522324165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 557144189625604 + 4279035627889 = 23603902^2 + 2068583^2 .

It is a cyclic number.

It is not a de Polignac number, because 561423225253493 - 2¹⁰ = 561423225252469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561423228253493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280711612626746 + 280711612626747.

It is an arithmetic number, because the mean of its divisors is an integer number (280711612626747).

Almost surely, 2^{561423225253493} is an apocalyptic number.

It is an amenable number.

561423225253493 is a deficient number, since it is larger than the sum of its proper divisors (1).

561423225253493 is an equidigital number, since it uses as much as digits as its factorization.

561423225253493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656000, while the sum is 56.

The spelling of 561423225253493 in words is "five hundred sixty-one trillion, four hundred twenty-three billion, two hundred twenty-five million, two hundred fifty-three thousand, four hundred ninety-three".