255022765 has 4 divisors (see below), whose sum is σ = 306027324. Its totient is φ = 204018208.

The previous prime is 255022741. The next prime is 255022813. The reversal of 255022765 is 567220552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 192959881 + 62062884 = 13891^2 + 7878^2 .

It is a cyclic number.

It is not a de Polignac number, because 255022765 - 2¹⁵ = 254989997 is a prime.

It is a super-2 number, since 2×255022765² = 130073221336490450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255022765.

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 3 ways as a sum of consecutive naturals, for example, 25502272 + ... + 25502281.

It is an arithmetic number, because the mean of its divisors is an integer number (76506831).

Almost surely, 2^255022765 is an apocalyptic number.

It is an amenable number.

255022765 is a deficient number, since it is larger than the sum of its proper divisors (51004559).

255022765 is an equidigital number, since it uses as much as digits as its factorization.

255022765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51004558.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 255022765 is about 15969.4322065626. The cubic root of 255022765 is about 634.1514406018.

The spelling of 255022765 in words is "two hundred fifty-five million, twenty-two thousand, seven hundred sixty-five".