561308960 has 48 divisors (see below), whose sum is σ = 1344796992. Its totient is φ = 221356800.

The previous prime is 561308959. The next prime is 561308977. The reversal of 561308960 is 69803165.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13346 + ... + 36065.

It is an arithmetic number, because the mean of its divisors is an integer number (28016604).

Almost surely, 2^561308960 is an apocalyptic number.

It is an amenable number.

561308960 is an abundant number, since it is smaller than the sum of its proper divisors (783488032).

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

561308960 is a wasteful number, since it uses less digits than its factorization.

561308960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49497 (or 49489 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 561308960 is about 23691.9598176259. The cubic root of 561308960 is about 824.8987742347.

The spelling of 561308960 in words is "five hundred sixty-one million, three hundred eight thousand, nine hundred sixty".