561342255 has 16 divisors (see below), whose sum is σ = 937198080. Its totient is φ = 286365728.

The previous prime is 561342233. The next prime is 561342263. The reversal of 561342255 is 552243165.

It is a cyclic number.

It is not a de Polignac number, because 561342255 - 2⁷ = 561342127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813195 + ... + 813884.

It is an arithmetic number, because the mean of its divisors is an integer number (58574880).

Almost surely, 2^561342255 is an apocalyptic number.

561342255 is a deficient number, since it is larger than the sum of its proper divisors (375855825).

561342255 is a wasteful number, since it uses less digits than its factorization.

561342255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627110.

The product of its digits is 36000, while the sum is 33.

The square root of 561342255 is about 23692.6624717443. The cubic root of 561342255 is about 824.9150840057.

The spelling of 561342255 in words is "five hundred sixty-one million, three hundred forty-two thousand, two hundred fifty-five".