255647099 has 2 divisors, whose sum is σ = 255647100. Its totient is φ = 255647098.

The previous prime is 255647057. The next prime is 255647101. The reversal of 255647099 is 990746552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255647099 is a prime.

Together with 255647101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255647999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127823549 + 127823550.

It is an arithmetic number, because the mean of its divisors is an integer number (127823550).

Almost surely, 2^255647099 is an apocalyptic number.

255647099 is a deficient number, since it is larger than the sum of its proper divisors (1).

255647099 is an equidigital number, since it uses as much as digits as its factorization.

255647099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 255647099 is about 15988.9680404959. The cubic root of 255647099 is about 634.6685181678.

The spelling of 255647099 in words is "two hundred fifty-five million, six hundred forty-seven thousand, ninety-nine".