561327912 has 48 divisors (see below), whose sum is σ = 1569310080. Its totient is φ = 181072800.

The previous prime is 561327911. The next prime is 561327919. The reversal of 561327912 is 219723165.

561327912 is a `hidden beast` number, since 5 + 613 + 27 + 9 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (561327911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123514 + ... + 127977.

It is an arithmetic number, because the mean of its divisors is an integer number (32693960).

Almost surely, 2^561327912 is an apocalyptic number.

It is an amenable number.

561327912 is an abundant number, since it is smaller than the sum of its proper divisors (1007982168).

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

561327912 is a wasteful number, since it uses less digits than its factorization.

561327912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251534 (or 251527 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 561327912 is about 23692.3597811615. The cubic root of 561327912 is about 824.9080580735.

The spelling of 561327912 in words is "five hundred sixty-one million, three hundred twenty-seven thousand, nine hundred twelve".