1255332697 has 2 divisors, whose sum is σ = 1255332698. Its totient is φ = 1255332696.

The previous prime is 1255332677. The next prime is 1255332713. The reversal of 1255332697 is 7962335521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1154912256 + 100420441 = 33984^2 + 10021^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255332697 - 2¹⁹ = 1254808409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255332607) by changing a digit.

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 as a sum of consecutive naturals, namely, 627666348 + 627666349.

It is an arithmetic number, because the mean of its divisors is an integer number (627666349).

Almost surely, 2^1255332697 is an apocalyptic number.

It is an amenable number.

1255332697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255332697 is an equidigital number, since it uses as much as digits as its factorization.

1255332697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 43.

The square root of 1255332697 is about 35430.6745208160. The cubic root of 1255332697 is about 1078.7470314338.

The spelling of 1255332697 in words is "one billion, two hundred fifty-five million, three hundred thirty-two thousand, six hundred ninety-seven".