1255452853 has 4 divisors (see below), whose sum is σ = 1255726188. Its totient is φ = 1255179520.

The previous prime is 1255452851. The next prime is 1255452857. The reversal of 1255452853 is 3582545521.

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 1032786769 + 222666084 = 32137^2 + 14922^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255452853 - 2¹ = 1255452851 is a prime.

It is a super-2 number, since 2×1255452853² = 3152323732211679218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255452851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129658 + ... + 139003.

It is an arithmetic number, because the mean of its divisors is an integer number (313931547).

Almost surely, 2^1255452853 is an apocalyptic number.

It is an amenable number.

1255452853 is a deficient number, since it is larger than the sum of its proper divisors (273335).

1255452853 is an equidigital number, since it uses as much as digits as its factorization.

1255452853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273334.

The product of its digits is 240000, while the sum is 40.

The square root of 1255452853 is about 35432.3701295863. The cubic root of 1255452853 is about 1078.7814482842.

The spelling of 1255452853 in words is "one billion, two hundred fifty-five million, four hundred fifty-two thousand, eight hundred fifty-three".