561095359 has 4 divisors (see below), whose sum is σ = 612104040. Its totient is φ = 510086680.

The previous prime is 561095351. The next prime is 561095399. The reversal of 561095359 is 953590165.

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

It is a cyclic number.

It is not a de Polignac number, because 561095359 - 2³ = 561095351 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 (561095351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25504324 + ... + 25504345.

It is an arithmetic number, because the mean of its divisors is an integer number (153026010).

Almost surely, 2^561095359 is an apocalyptic number.

561095359 is a deficient number, since it is larger than the sum of its proper divisors (51008681).

561095359 is a wasteful number, since it uses less digits than its factorization.

561095359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51008680.

The product of its (nonzero) digits is 182250, while the sum is 43.

The square root of 561095359 is about 23687.4515091852. The cubic root of 561095359 is about 824.7941250601.

The spelling of 561095359 in words is "five hundred sixty-one million, ninety-five thousand, three hundred fifty-nine".