561183712 has 48 divisors (see below), whose sum is σ = 1134069552. Its totient is φ = 273208320.

The previous prime is 561183709. The next prime is 561183743. The reversal of 561183712 is 217381165.

It is a happy number.

It is a super-2 number, since 2×561183712² = 629854317228197888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 848662 + ... + 849322.

It is an arithmetic number, because the mean of its divisors is an integer number (23626449).

Almost surely, 2^561183712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561183712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567034776).

561183712 is an abundant number, since it is smaller than the sum of its proper divisors (572885840).

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

561183712 is a wasteful number, since it uses less digits than its factorization.

561183712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331 (or 1323 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 561183712 is about 23689.3164105679. The cubic root of 561183712 is about 824.8374149154.

The spelling of 561183712 in words is "five hundred sixty-one million, one hundred eighty-three thousand, seven hundred twelve".