561100572 has 36 divisors (see below), whose sum is σ = 1501770816. Its totient is φ = 176031360.

The previous prime is 561100541. The next prime is 561100577. The reversal of 561100572 is 275001165.

561100572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561100577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457804 + ... + 459027.

It is an arithmetic number, because the mean of its divisors is an integer number (41715856).

Almost surely, 2^561100572 is an apocalyptic number.

It is an amenable number.

561100572 is an abundant number, since it is smaller than the sum of its proper divisors (940670244).

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

561100572 is a wasteful number, since it uses less digits than its factorization.

561100572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916858 (or 916853 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 561100572 is about 23687.5615460942. The cubic root of 561100572 is about 824.7966793725.

The spelling of 561100572 in words is "five hundred sixty-one million, one hundred thousand, five hundred seventy-two".