1255393031 has 2 divisors, whose sum is σ = 1255393032. Its totient is φ = 1255393030.

The previous prime is 1255393001. The next prime is 1255393037. The reversal of 1255393031 is 1303935521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1255393031 - 2⁶ = 1255392967 is a prime.

It is a super-2 number, since 2×1255393031² = 3152023324566733922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255393037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627696515 + 627696516.

It is an arithmetic number, because the mean of its divisors is an integer number (627696516).

Almost surely, 2^1255393031 is an apocalyptic number.

1255393031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255393031 is an equidigital number, since it uses as much as digits as its factorization.

1255393031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 1255393031 is about 35431.5259479464. The cubic root of 1255393031 is about 1078.7643134608.

The spelling of 1255393031 in words is "one billion, two hundred fifty-five million, three hundred ninety-three thousand, thirty-one".