255983597 has 2 divisors, whose sum is σ = 255983598. Its totient is φ = 255983596.

The previous prime is 255983593. The next prime is 255983653. The reversal of 255983597 is 795389552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255808036 + 175561 = 15994^2 + 419^2 .

It is a cyclic number.

It is not a de Polignac number, because 255983597 - 2² = 255983593 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 (255983593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127991798 + 127991799.

It is an arithmetic number, because the mean of its divisors is an integer number (127991799).

Almost surely, 2^255983597 is an apocalyptic number.

It is an amenable number.

255983597 is a deficient number, since it is larger than the sum of its proper divisors (1).

255983597 is an equidigital number, since it uses as much as digits as its factorization.

255983597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402000, while the sum is 53.

The square root of 255983597 is about 15999.4873980387. The cubic root of 255983597 is about 634.9468589667.

The spelling of 255983597 in words is "two hundred fifty-five million, nine hundred eighty-three thousand, five hundred ninety-seven".