255243199 has 2 divisors, whose sum is σ = 255243200. Its totient is φ = 255243198.

The previous prime is 255243187. The next prime is 255243269. The reversal of 255243199 is 991342552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255243199 - 2¹⁹ = 254718911 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255243139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127621599 + 127621600.

It is an arithmetic number, because the mean of its divisors is an integer number (127621600).

Almost surely, 2^255243199 is an apocalyptic number.

255243199 is a deficient number, since it is larger than the sum of its proper divisors (1).

255243199 is an equidigital number, since it uses as much as digits as its factorization.

255243199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 40.

The square root of 255243199 is about 15976.3324639919. The cubic root of 255243199 is about 634.3341017871.

The spelling of 255243199 in words is "two hundred fifty-five million, two hundred forty-three thousand, one hundred ninety-nine".