1255032491 has 2 divisors, whose sum is σ = 1255032492. Its totient is φ = 1255032490.

The previous prime is 1255032437. The next prime is 1255032511. The reversal of 1255032491 is 1942305521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255032491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255032091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627516245 + 627516246.

It is an arithmetic number, because the mean of its divisors is an integer number (627516246).

Almost surely, 2^1255032491 is an apocalyptic number.

1255032491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255032491 is an equidigital number, since it uses as much as digits as its factorization.

1255032491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1255032491 is about 35426.4377407608. The cubic root of 1255032491 is about 1078.6610324125.

The spelling of 1255032491 in words is "one billion, two hundred fifty-five million, thirty-two thousand, four hundred ninety-one".