1255000771 has 2 divisors, whose sum is σ = 1255000772. Its totient is φ = 1255000770.

The previous prime is 1255000759. The next prime is 1255000783. The reversal of 1255000771 is 1770005521.

It is a balanced prime because it is at equal distance from previous prime (1255000759) and next prime (1255000783).

It is a cyclic number.

It is not a de Polignac number, because 1255000771 - 2⁵ = 1255000739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255000751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627500385 + 627500386.

It is an arithmetic number, because the mean of its divisors is an integer number (627500386).

Almost surely, 2^1255000771 is an apocalyptic number.

1255000771 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255000771 is an equidigital number, since it uses as much as digits as its factorization.

1255000771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 1255000771 is about 35425.9900496796. The cubic root of 1255000771 is about 1078.6519448878.

The spelling of 1255000771 in words is "one billion, two hundred fifty-five million, seven hundred seventy-one", and thus it is an aban number.