561103600 has 60 divisors (see below), whose sum is σ = 1394564760. Its totient is φ = 216697600.

The previous prime is 561103591. The next prime is 561103651. The reversal of 561103600 is 6301165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12586 + ... + 35785.

It is an arithmetic number, because the mean of its divisors is an integer number (23242746).

Almost surely, 2^561103600 is an apocalyptic number.

561103600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

561103600 is an abundant number, since it is smaller than the sum of its proper divisors (833461160).

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

561103600 is a wasteful number, since it uses less digits than its factorization.

561103600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48418 (or 48407 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 561103600 is about 23687.6254614092. The cubic root of 561103600 is about 824.7981630518.

Adding to 561103600 its reverse (6301165), we get a palindrome (567404765).

The spelling of 561103600 in words is "five hundred sixty-one million, one hundred three thousand, six hundred".