561227892 has 12 divisors (see below), whose sum is σ = 1309531776. Its totient is φ = 187075960.

The previous prime is 561227861. The next prime is 561227917. The reversal of 561227892 is 298722165.

It is a tau number, because it is divible by the number of its divisors (12).

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, 23384484 + ... + 23384507.

It is an arithmetic number, because the mean of its divisors is an integer number (109127648).

Almost surely, 2^561227892 is an apocalyptic number.

It is an amenable number.

561227892 is an abundant number, since it is smaller than the sum of its proper divisors (748303884).

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

561227892 is a wasteful number, since it uses less digits than its factorization.

561227892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46768998 (or 46768996 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 561227892 is about 23690.2488800772. The cubic root of 561227892 is about 824.8590598539.

The spelling of 561227892 in words is "five hundred sixty-one million, two hundred twenty-seven thousand, eight hundred ninety-two".