561570068 has 12 divisors (see below), whose sum is σ = 983126592. Its totient is φ = 280676760.

The previous prime is 561570043. The next prime is 561570073. The reversal of 561570068 is 860075165.

It is a happy number.

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, 14780 + ... + 36627.

It is an arithmetic number, because the mean of its divisors is an integer number (81927216).

Almost surely, 2^561570068 is an apocalyptic number.

It is an amenable number.

561570068 is a deficient number, since it is larger than the sum of its proper divisors (421556524).

561570068 is a wasteful number, since it uses less digits than its factorization.

561570068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54142 (or 54140 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 561570068 is about 23697.4696539525. The cubic root of 561570068 is about 825.0266623768.

The spelling of 561570068 in words is "five hundred sixty-one million, five hundred seventy thousand, sixty-eight".