1255247933 has 2 divisors, whose sum is σ = 1255247934. Its totient is φ = 1255247932.

The previous prime is 1255247893. The next prime is 1255247947. The reversal of 1255247933 is 3397425521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 769618564 + 485629369 = 27742^2 + 22037^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255247933 - 2¹⁸ = 1254985789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255247953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627623966 + 627623967.

It is an arithmetic number, because the mean of its divisors is an integer number (627623967).

Almost surely, 2^1255247933 is an apocalyptic number.

It is an amenable number.

1255247933 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255247933 is an equidigital number, since it uses as much as digits as its factorization.

1255247933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 41.

The square root of 1255247933 is about 35429.4783055015. The cubic root of 1255247933 is about 1078.7227507599.

The spelling of 1255247933 in words is "one billion, two hundred fifty-five million, two hundred forty-seven thousand, nine hundred thirty-three".