561056064 has 28 divisors (see below), whose sum is σ = 1484461344. Its totient is φ = 187018624.

The previous prime is 561056009. The next prime is 561056077. The reversal of 561056064 is 460650165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460892 + ... + 1461275.

Almost surely, 2^561056064 is an apocalyptic number.

It is an amenable number.

561056064 is an abundant number, since it is smaller than the sum of its proper divisors (923405280).

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

561056064 is a wasteful number, since it uses less digits than its factorization.

561056064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922182 (or 2922172 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 561056064 is about 23686.6220470543. The cubic root of 561056064 is about 824.7748704354.

The spelling of 561056064 in words is "five hundred sixty-one million, fifty-six thousand, sixty-four".