1255269077 has 2 divisors, whose sum is σ = 1255269078. Its totient is φ = 1255269076.

The previous prime is 1255269061. The next prime is 1255269121. The reversal of 1255269077 is 7709625521.

It is an a-pointer prime, because the next prime (1255269121) can be obtained adding 1255269077 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1041933841 + 213335236 = 32279^2 + 14606^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255269077 - 2⁴ = 1255269061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255269017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627634538 + 627634539.

It is an arithmetic number, because the mean of its divisors is an integer number (627634539).

Almost surely, 2^1255269077 is an apocalyptic number.

It is an amenable number.

1255269077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255269077 is an equidigital number, since it uses as much as digits as its factorization.

1255269077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 1255269077 is about 35429.7766998326. The cubic root of 1255269077 is about 1078.7288075675.

The spelling of 1255269077 in words is "one billion, two hundred fifty-five million, two hundred sixty-nine thousand, seventy-seven".