1255011983 has 2 divisors, whose sum is σ = 1255011984. Its totient is φ = 1255011982.

The previous prime is 1255011973. The next prime is 1255012123. The reversal of 1255011983 is 3891105521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1255011983 - 2⁸ = 1255011727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255011973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627505991 + 627505992.

It is an arithmetic number, because the mean of its divisors is an integer number (627505992).

Almost surely, 2^1255011983 is an apocalyptic number.

1255011983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255011983 is an equidigital number, since it uses as much as digits as its factorization.

1255011983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 1255011983 is about 35426.1482947272. The cubic root of 1255011983 is about 1078.6551570530.

The spelling of 1255011983 in words is "one billion, two hundred fifty-five million, eleven thousand, nine hundred eighty-three".