255243097 has 4 divisors (see below), whose sum is σ = 255548160. Its totient is φ = 254938036.

The previous prime is 255243091. The next prime is 255243101. The reversal of 255243097 is 790342552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255243097 - 2³ = 255243089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255243091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151273 + ... + 152950.

It is an arithmetic number, because the mean of its divisors is an integer number (63887040).

Almost surely, 2^255243097 is an apocalyptic number.

It is an amenable number.

255243097 is a deficient number, since it is larger than the sum of its proper divisors (305063).

255243097 is an equidigital number, since it uses as much as digits as its factorization.

255243097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305062.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 255243097 is about 15976.3292717695. The cubic root of 255243097 is about 634.3340172898.

The spelling of 255243097 in words is "two hundred fifty-five million, two hundred forty-three thousand, ninety-seven".