561199072 has 24 divisors (see below), whose sum is σ = 1262698416. Its totient is φ = 240513792.

The previous prime is 561199069. The next prime is 561199073. The reversal of 561199072 is 270991165.

561199072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×561199072² = 629888796827322368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561199073) 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, 1252453 + ... + 1252900.

It is an arithmetic number, because the mean of its divisors is an integer number (52612434).

Almost surely, 2^561199072 is an apocalyptic number.

It is an amenable number.

561199072 is an abundant number, since it is smaller than the sum of its proper divisors (701499344).

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

561199072 is a wasteful number, since it uses less digits than its factorization.

561199072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505370 (or 2505362 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 561199072 is about 23689.6406051253. The cubic root of 561199072 is about 824.8449403103.

The spelling of 561199072 in words is "five hundred sixty-one million, one hundred ninety-nine thousand, seventy-two".