561554712 has 48 divisors (see below), whose sum is σ = 1523034240. Its totient is φ = 186919488.

The previous prime is 561554699. The next prime is 561554797. The reversal of 561554712 is 217455165.

561554712 is a `hidden beast` number, since 561 + 55 + 47 + 1 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49353 + ... + 59655.

It is an arithmetic number, because the mean of its divisors is an integer number (31729880).

Almost surely, 2^561554712 is an apocalyptic number.

It is an amenable number.

561554712 is an abundant number, since it is smaller than the sum of its proper divisors (961479528).

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

561554712 is a wasteful number, since it uses less digits than its factorization.

561554712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11072 (or 11065 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 561554712 is about 23697.1456509007. The cubic root of 561554712 is about 825.0191422556.

The spelling of 561554712 in words is "five hundred sixty-one million, five hundred fifty-four thousand, seven hundred twelve".