561502654625 has 64 divisors (see below), whose sum is σ = 768282907392. Its totient is φ = 406328832000.

The previous prime is 561502654621. The next prime is 561502654637. The reversal of 561502654625 is 526456205165.

It is not a de Polignac number, because 561502654625 - 2² = 561502654621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561502654625.

It is not an unprimeable number, because it can be changed into a prime (561502654621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 461382017 + ... + 461383233.

It is an arithmetic number, because the mean of its divisors is an integer number (12004420428).

Almost surely, 2^561502654625 is an apocalyptic number.

561502654625 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

561502654625 is a deficient number, since it is larger than the sum of its proper divisors (206780252767).

561502654625 is a wasteful number, since it uses less digits than its factorization.

561502654625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643 (or 2633 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 561502654625 in words is "five hundred sixty-one billion, five hundred two million, six hundred fifty-four thousand, six hundred twenty-five".