1255545497 has 2 divisors, whose sum is σ = 1255545498. Its totient is φ = 1255545496.

The previous prime is 1255545463. The next prime is 1255545503. The reversal of 1255545497 is 7945455521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 938135641 + 317409856 = 30629^2 + 17816^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255545497 - 2¹⁴ = 1255529113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255545407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627772748 + 627772749.

It is an arithmetic number, because the mean of its divisors is an integer number (627772749).

Almost surely, 2^1255545497 is an apocalyptic number.

It is an amenable number.

1255545497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255545497 is an equidigital number, since it uses as much as digits as its factorization.

1255545497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260000, while the sum is 47.

The square root of 1255545497 is about 35433.6774411011. The cubic root of 1255545497 is about 1078.8079832433.

The spelling of 1255545497 in words is "one billion, two hundred fifty-five million, five hundred forty-five thousand, four hundred ninety-seven".