1255330853 has 6 divisors (see below), whose sum is σ = 1460282886. Its totient is φ = 1075997832.

The previous prime is 1255330841. The next prime is 1255330861. The reversal of 1255330853 is 3580335521.

It can be written as a sum of positive squares in only one way, i.e., 1192873444 + 62457409 = 34538^2 + 7903^2 .

It is not a de Polignac number, because 1255330853 - 2⁴ = 1255330837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255330553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12809450 + ... + 12809547.

It is an arithmetic number, because the mean of its divisors is an integer number (243380481).

Almost surely, 2^1255330853 is an apocalyptic number.

It is an amenable number.

1255330853 is a deficient number, since it is larger than the sum of its proper divisors (204952033).

1255330853 is an equidigital number, since it uses as much as digits as its factorization.

1255330853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25619011 (or 25619004 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 1255330853 is about 35430.6484981576. The cubic root of 1255330853 is about 1078.7465032311.

The spelling of 1255330853 in words is "one billion, two hundred fifty-five million, three hundred thirty thousand, eight hundred fifty-three".