561096520 has 32 divisors (see below), whose sum is σ = 1263424320. Its totient is φ = 224268480.

The previous prime is 561096493. The next prime is 561096539. The reversal of 561096520 is 25690165.

It is a happy number.

It is a super-2 number, since 2×561096520² = 629658609512220800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57175 + ... + 66265.

It is an arithmetic number, because the mean of its divisors is an integer number (39482010).

Almost surely, 2^561096520 is an apocalyptic number.

It is an amenable number.

561096520 is an abundant number, since it is smaller than the sum of its proper divisors (702327800).

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

561096520 is a wasteful number, since it uses less digits than its factorization.

561096520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10645 (or 10641 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 561096520 is about 23687.4760158190. The cubic root of 561096520 is about 824.7946939386.

The spelling of 561096520 in words is "five hundred sixty-one million, ninety-six thousand, five hundred twenty".