255300649 has 2 divisors, whose sum is σ = 255300650. Its totient is φ = 255300648.

The previous prime is 255300599. The next prime is 255300671. The reversal of 255300649 is 946003552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175377049 + 79923600 = 13243^2 + 8940^2 .

It is a cyclic number.

It is not a de Polignac number, because 255300649 - 2²⁷ = 121082921 is a prime.

It is not a weakly prime, because it can be changed into another prime (255300449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127650324 + 127650325.

It is an arithmetic number, because the mean of its divisors is an integer number (127650325).

Almost surely, 2^255300649 is an apocalyptic number.

It is an amenable number.

255300649 is a deficient number, since it is larger than the sum of its proper divisors (1).

255300649 is an equidigital number, since it uses as much as digits as its factorization.

255300649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 255300649 is about 15978.1303349297. The cubic root of 255300649 is about 634.3816900748.

The spelling of 255300649 in words is "two hundred fifty-five million, three hundred thousand, six hundred forty-nine".