561090703 has 4 divisors (see below), whose sum is σ = 574139368. Its totient is φ = 548042040.

The previous prime is 561090679. The next prime is 561090709. The reversal of 561090703 is 307090165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561090703 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561090709) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6524268 + ... + 6524353.

It is an arithmetic number, because the mean of its divisors is an integer number (143534842).

Almost surely, 2^561090703 is an apocalyptic number.

561090703 is a deficient number, since it is larger than the sum of its proper divisors (13048665).

561090703 is a wasteful number, since it uses less digits than its factorization.

561090703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13048664.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 561090703 is about 23687.3532290967. The cubic root of 561090703 is about 824.7918436582.

The spelling of 561090703 in words is "five hundred sixty-one million, ninety thousand, seven hundred three".