1255926949 has 2 divisors, whose sum is σ = 1255926950. Its totient is φ = 1255926948.

The previous prime is 1255926907. The next prime is 1255926953. The reversal of 1255926949 is 9496295521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 904926724 + 351000225 = 30082^2 + 18735^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255926949 - 2¹³ = 1255918757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255926896 and 1255926905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255926979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627963474 + 627963475.

It is an arithmetic number, because the mean of its divisors is an integer number (627963475).

Almost surely, 2^1255926949 is an apocalyptic number.

It is an amenable number.

1255926949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255926949 is an equidigital number, since it uses as much as digits as its factorization.

1255926949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1749600, while the sum is 52.

The square root of 1255926949 is about 35439.0596517458. The cubic root of 1255926949 is about 1078.9172244181.

The spelling of 1255926949 in words is "one billion, two hundred fifty-five million, nine hundred twenty-six thousand, nine hundred forty-nine".