255102509 has 2 divisors, whose sum is σ = 255102510. Its totient is φ = 255102508.

The previous prime is 255102439. The next prime is 255102517. The reversal of 255102509 is 905201552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244046884 + 11055625 = 15622^2 + 3325^2 .

It is a cyclic number.

It is not a de Polignac number, because 255102509 - 2¹⁶ = 255036973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255102539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127551254 + 127551255.

It is an arithmetic number, because the mean of its divisors is an integer number (127551255).

Almost surely, 2^255102509 is an apocalyptic number.

It is an amenable number.

255102509 is a deficient number, since it is larger than the sum of its proper divisors (1).

255102509 is an equidigital number, since it uses as much as digits as its factorization.

255102509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 255102509 is about 15971.9287814591. The cubic root of 255102509 is about 634.2175320903.

The spelling of 255102509 in words is "two hundred fifty-five million, one hundred two thousand, five hundred nine".