561256286 has 8 divisors (see below), whose sum is σ = 843760800. Its totient is φ = 280002688.

The previous prime is 561256277. The next prime is 561256291. The reversal of 561256286 is 682652165.

561256286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311606 + ... + 313401.

It is an arithmetic number, because the mean of its divisors is an integer number (105470100).

Almost surely, 2^561256286 is an apocalyptic number.

561256286 is a deficient number, since it is larger than the sum of its proper divisors (282504514).

561256286 is a wasteful number, since it uses less digits than its factorization.

561256286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625458.

The product of its digits is 172800, while the sum is 41.

The square root of 561256286 is about 23690.8481485995. The cubic root of 561256286 is about 824.8729702181.

The spelling of 561256286 in words is "five hundred sixty-one million, two hundred fifty-six thousand, two hundred eighty-six".