561056275 has 12 divisors (see below), whose sum is σ = 749226352. Its totient is φ = 414318240.

The previous prime is 561056261. The next prime is 561056291. The reversal of 561056275 is 572650165.

It is not a de Polignac number, because 561056275 - 2⁷ = 561056147 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 862839 + ... + 863488.

Almost surely, 2^561056275 is an apocalyptic number.

561056275 is a deficient number, since it is larger than the sum of its proper divisors (188170077).

561056275 is a wasteful number, since it uses less digits than its factorization.

561056275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726350 (or 1726345 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 561056275 is about 23686.6265010448. The cubic root of 561056275 is about 824.7749738282.

It can be divided in two parts, 56 and 1056275, that added together give a triangular number (1056331 = T₁₄₅₃).

The spelling of 561056275 in words is "five hundred sixty-one million, fifty-six thousand, two hundred seventy-five".