561112604 has 48 divisors (see below), whose sum is σ = 1075757760. Its totient is φ = 254538240.

The previous prime is 561112603. The next prime is 561112609. The reversal of 561112604 is 406211165.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561112603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216934 + ... + 1217394.

It is an arithmetic number, because the mean of its divisors is an integer number (22411620).

Almost surely, 2^561112604 is an apocalyptic number.

It is an amenable number.

561112604 is a deficient number, since it is larger than the sum of its proper divisors (514645156).

561112604 is a wasteful number, since it uses less digits than its factorization.

561112604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 561112604 is about 23687.8155176876. The cubic root of 561112604 is about 824.8025748591.

Adding to 561112604 its reverse (406211165), we get a palindrome (967323769).

The spelling of 561112604 in words is "five hundred sixty-one million, one hundred twelve thousand, six hundred four".