561823254260 has 24 divisors (see below), whose sum is σ = 1179864479976. Its totient is φ = 224722512000.

The previous prime is 561823254247. The next prime is 561823254271. The reversal of 561823254260 is 62452328165.

It can be written as a sum of positive squares in 4 ways, for example, as 200809741924 + 361013512336 = 448118^2 + 600844^2 .

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 282914 + ... + 1097126.

It is an arithmetic number, because the mean of its divisors is an integer number (49161019999).

Almost surely, 2^561823254260 is an apocalyptic number.

It is an amenable number.

561823254260 is an abundant number, since it is smaller than the sum of its proper divisors (618041225716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561823254260 is a wasteful number, since it uses less digits than its factorization.

561823254260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848723 (or 848721 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 561823254260 in words is "five hundred sixty-one billion, eight hundred twenty-three million, two hundred fifty-four thousand, two hundred sixty".