1255043611 has 2 divisors, whose sum is σ = 1255043612. Its totient is φ = 1255043610.

The previous prime is 1255043609. The next prime is 1255043633. The reversal of 1255043611 is 1163405521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1255043611 - 2¹ = 1255043609 is a prime.

Together with 1255043609, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1255043611.

It is not a weakly prime, because it can be changed into another prime (1255043311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627521805 + 627521806.

It is an arithmetic number, because the mean of its divisors is an integer number (627521806).

Almost surely, 2^1255043611 is an apocalyptic number.

1255043611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255043611 is an equidigital number, since it uses as much as digits as its factorization.

1255043611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1255043611 is about 35426.5946853490. The cubic root of 1255043611 is about 1078.6642181667.

The spelling of 1255043611 in words is "one billion, two hundred fifty-five million, forty-three thousand, six hundred eleven".