561103599 has 8 divisors (see below), whose sum is σ = 855015040. Its totient is φ = 320630616.

The previous prime is 561103591. The next prime is 561103651. The reversal of 561103599 is 995301165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 561103599 - 2³ = 561103591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561103591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13359589 + ... + 13359630.

It is an arithmetic number, because the mean of its divisors is an integer number (106876880).

Almost surely, 2^561103599 is an apocalyptic number.

561103599 is a deficient number, since it is larger than the sum of its proper divisors (293911441).

561103599 is a wasteful number, since it uses less digits than its factorization.

561103599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26719229.

The product of its (nonzero) digits is 36450, while the sum is 39.

The square root of 561103599 is about 23687.6254403011. The cubic root of 561103599 is about 824.7981625618.

The spelling of 561103599 in words is "five hundred sixty-one million, one hundred three thousand, five hundred ninety-nine".