561285001285 has 16 divisors (see below), whose sum is σ = 681696288000. Its totient is φ = 443592434880.

The previous prime is 561285001259. The next prime is 561285001297. The reversal of 561285001285 is 582100582165.

It is not a de Polignac number, because 561285001285 - 2²⁵ = 561251446853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10763575 + ... + 10815595.

It is an arithmetic number, because the mean of its divisors is an integer number (42606018000).

Almost surely, 2^561285001285 is an apocalyptic number.

It is an amenable number.

561285001285 is a deficient number, since it is larger than the sum of its proper divisors (120411286715).

561285001285 is a wasteful number, since it uses less digits than its factorization.

561285001285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78108.

The product of its (nonzero) digits is 192000, while the sum is 43.

The spelling of 561285001285 in words is "five hundred sixty-one billion, two hundred eighty-five million, one thousand, two hundred eighty-five".