255897361 has 2 divisors, whose sum is σ = 255897362. Its totient is φ = 255897360.

The previous prime is 255897347. The next prime is 255897391. The reversal of 255897361 is 163798552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132687361 + 123210000 = 11519^2 + 11100^2 .

It is a cyclic number.

It is not a de Polignac number, because 255897361 - 2⁵ = 255897329 is a prime.

It is a super-3 number, since 3×255897361³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (255897391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127948680 + 127948681.

It is an arithmetic number, because the mean of its divisors is an integer number (127948681).

Almost surely, 2^255897361 is an apocalyptic number.

It is an amenable number.

255897361 is a deficient number, since it is larger than the sum of its proper divisors (1).

255897361 is an equidigital number, since it uses as much as digits as its factorization.

255897361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 46.

The square root of 255897361 is about 15996.7922096900. The cubic root of 255897361 is about 634.8755504560.

The spelling of 255897361 in words is "two hundred fifty-five million, eight hundred ninety-seven thousand, three hundred sixty-one".