255512249 has 2 divisors, whose sum is σ = 255512250. Its totient is φ = 255512248.

The previous prime is 255512239. The next prime is 255512251. The reversal of 255512249 is 942215552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138180025 + 117332224 = 11755^2 + 10832^2 .

It is a cyclic number.

It is not a de Polignac number, because 255512249 - 2⁴ = 255512233 is a prime.

Together with 255512251, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_13964264 and since 255512249 and 13964264 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (255512239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127756124 + 127756125.

It is an arithmetic number, because the mean of its divisors is an integer number (127756125).

Almost surely, 2^255512249 is an apocalyptic number.

It is an amenable number.

255512249 is a deficient number, since it is larger than the sum of its proper divisors (1).

255512249 is an equidigital number, since it uses as much as digits as its factorization.

255512249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 35.

The square root of 255512249 is about 15984.7505141619. The cubic root of 255512249 is about 634.5569058414.

The spelling of 255512249 in words is "two hundred fifty-five million, five hundred twelve thousand, two hundred forty-nine".