655500259 has 2 divisors, whose sum is σ = 655500260. Its totient is φ = 655500258.

The previous prime is 655500257. The next prime is 655500353. The reversal of 655500259 is 952005556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655500259 - 2¹ = 655500257 is a prime.

Together with 655500257, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (655500257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327750129 + 327750130.

It is an arithmetic number, because the mean of its divisors is an integer number (327750130).

Almost surely, 2^655500259 is an apocalyptic number.

655500259 is a deficient number, since it is larger than the sum of its proper divisors (1).

655500259 is an equidigital number, since it uses as much as digits as its factorization.

655500259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 655500259 is about 25602.7392870372. The cubic root of 655500259 is about 868.6755992803.

The spelling of 655500259 in words is "six hundred fifty-five million, five hundred thousand, two hundred fifty-nine".