561011922 has 12 divisors (see below), whose sum is σ = 1215525870. Its totient is φ = 187003968.

The previous prime is 561011921. The next prime is 561011939. The reversal of 561011922 is 229110165.

561011922 is a `hidden beast` number, since 561 + 0 + 11 + 92 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 494573121 + 66438801 = 22239^2 + 8151^2 .

It is a super-2 number, since 2×561011922² = 629468753252268168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (561011921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15583647 + ... + 15583682.

Almost surely, 2^561011922 is an apocalyptic number.

561011922 is an abundant number, since it is smaller than the sum of its proper divisors (654513948).

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

561011922 is a wasteful number, since it uses less digits than its factorization.

561011922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31167337 (or 31167334 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 561011922 is about 23685.6902369342. The cubic root of 561011922 is about 824.7532396991.

The spelling of 561011922 in words is "five hundred sixty-one million, eleven thousand, nine hundred twenty-two".