255313897 has 2 divisors, whose sum is σ = 255313898. Its totient is φ = 255313896.

The previous prime is 255313873. The next prime is 255313907. The reversal of 255313897 is 798313552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194769936 + 60543961 = 13956^2 + 7781^2 .

It is a cyclic number.

It is not a de Polignac number, because 255313897 - 2²⁷ = 121096169 is a prime.

It is equal to p_13953958 and since 255313897 and 13953958 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 (255310897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127656948 + 127656949.

It is an arithmetic number, because the mean of its divisors is an integer number (127656949).

Almost surely, 2^255313897 is an apocalyptic number.

It is an amenable number.

255313897 is a deficient number, since it is larger than the sum of its proper divisors (1).

255313897 is an equidigital number, since it uses as much as digits as its factorization.

255313897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 43.

The square root of 255313897 is about 15978.5448962038. The cubic root of 255313897 is about 634.3926629458.

The spelling of 255313897 in words is "two hundred fifty-five million, three hundred thirteen thousand, eight hundred ninety-seven".