561951932 has 24 divisors (see below), whose sum is σ = 1051386336. Its totient is φ = 261877248.

The previous prime is 561951917. The next prime is 561951941. The reversal of 561951932 is 239159165.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 561951932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33113 + ... + 47120.

It is an arithmetic number, because the mean of its divisors is an integer number (43807764).

Almost surely, 2^561951932 is an apocalyptic number.

It is an amenable number.

561951932 is a deficient number, since it is larger than the sum of its proper divisors (489434404).

561951932 is a wasteful number, since it uses less digits than its factorization.

561951932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80357 (or 80355 counting only the distinct ones).

The product of its digits is 72900, while the sum is 41.

The square root of 561951932 is about 23705.5253474796. The cubic root of 561951932 is about 825.2136242634.

The spelling of 561951932 in words is "five hundred sixty-one million, nine hundred fifty-one thousand, nine hundred thirty-two".