255130069 has 2 divisors, whose sum is σ = 255130070. Its totient is φ = 255130068.

The previous prime is 255130027. The next prime is 255130097. The reversal of 255130069 is 960031552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204861969 + 50268100 = 14313^2 + 7090^2 .

It is a cyclic number.

It is not a de Polignac number, because 255130069 - 2¹¹ = 255128021 is a prime.

It is a super-2 number, since 2×255130069² = 130182704215889522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 255130069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255130009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127565034 + 127565035.

It is an arithmetic number, because the mean of its divisors is an integer number (127565035).

Almost surely, 2^255130069 is an apocalyptic number.

It is an amenable number.

255130069 is a deficient number, since it is larger than the sum of its proper divisors (1).

255130069 is an equidigital number, since it uses as much as digits as its factorization.

255130069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 255130069 is about 15972.7915218349. The cubic root of 255130069 is about 634.2403704986.

The spelling of 255130069 in words is "two hundred fifty-five million, one hundred thirty thousand, sixty-nine".