561087512 has 16 divisors (see below), whose sum is σ = 1059102000. Its totient is φ = 278660320.

The previous prime is 561087491. The next prime is 561087517. The reversal of 561087512 is 215780165.

It is a super-2 number, since 2×561087512² = 629638392244700288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561087517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234164 + ... + 236547.

It is an arithmetic number, because the mean of its divisors is an integer number (66193875).

Almost surely, 2^561087512 is an apocalyptic number.

It is an amenable number.

561087512 is a deficient number, since it is larger than the sum of its proper divisors (498014488).

561087512 is a wasteful number, since it uses less digits than its factorization.

561087512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470866 (or 470862 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 561087512 is about 23687.2858723831. The cubic root of 561087512 is about 824.7902800870.

The spelling of 561087512 in words is "five hundred sixty-one million, eighty-seven thousand, five hundred twelve".