1255230265 has 4 divisors (see below), whose sum is σ = 1506276324. Its totient is φ = 1004184208.

The previous prime is 1255230247. The next prime is 1255230271. The reversal of 1255230265 is 5620325521.

It is a happy number.

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 515607849 + 739622416 = 22707^2 + 27196^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255230265 - 2²³ = 1246841657 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 125523022 + ... + 125523031.

It is an arithmetic number, because the mean of its divisors is an integer number (376569081).

Almost surely, 2^1255230265 is an apocalyptic number.

It is an amenable number.

1255230265 is a deficient number, since it is larger than the sum of its proper divisors (251046059).

1255230265 is an equidigital number, since it uses as much as digits as its factorization.

1255230265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251046058.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 1255230265 is about 35429.2289642323. The cubic root of 1255230265 is about 1078.7176896182.

Adding to 1255230265 its reverse (5620325521), we get a palindrome (6875555786).

The spelling of 1255230265 in words is "one billion, two hundred fifty-five million, two hundred thirty thousand, two hundred sixty-five".