561117092 has 12 divisors (see below), whose sum is σ = 994385280. Its totient is φ = 277007016.

The previous prime is 561117091. The next prime is 561117127. The reversal of 561117092 is 290711165.

It is not an unprimeable number, because it can be changed into a prime (561117091) 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, 887528 + ... + 888159.

It is an arithmetic number, because the mean of its divisors is an integer number (82865440).

Almost surely, 2^561117092 is an apocalyptic number.

It is an amenable number.

561117092 is a deficient number, since it is larger than the sum of its proper divisors (433268188).

561117092 is a wasteful number, since it uses less digits than its factorization.

561117092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775770 (or 1775768 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 561117092 is about 23687.9102497455. The cubic root of 561117092 is about 824.8047738854.

The spelling of 561117092 in words is "five hundred sixty-one million, one hundred seventeen thousand, ninety-two".