561083362531 has 2 divisors, whose sum is σ = 561083362532. Its totient is φ = 561083362530.

The previous prime is 561083362487. The next prime is 561083362597. The reversal of 561083362531 is 135263380165.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 561083362531 - 2⁷ = 561083362403 is a prime.

It is a super-2 number, since 2×561083362531² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (561083360531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280541681265 + 280541681266.

It is an arithmetic number, because the mean of its divisors is an integer number (280541681266).

Almost surely, 2^561083362531 is an apocalyptic number.

561083362531 is a deficient number, since it is larger than the sum of its proper divisors (1).

561083362531 is an equidigital number, since it uses as much as digits as its factorization.

561083362531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 561083362531 in words is "five hundred sixty-one billion, eighty-three million, three hundred sixty-two thousand, five hundred thirty-one".