255205427 has 2 divisors, whose sum is σ = 255205428. Its totient is φ = 255205426.

The previous prime is 255205409. The next prime is 255205429. The reversal of 255205427 is 724502552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255205427 is a prime.

Together with 255205429, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 255205393 and 255205402.

It is not a weakly prime, because it can be changed into another prime (255205429) 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, 127602713 + 127602714.

It is an arithmetic number, because the mean of its divisors is an integer number (127602714).

Almost surely, 2^255205427 is an apocalyptic number.

255205427 is a deficient number, since it is larger than the sum of its proper divisors (1).

255205427 is an equidigital number, since it uses as much as digits as its factorization.

255205427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 255205427 is about 15975.1502966326. The cubic root of 255205427 is about 634.3028097360.

Adding to 255205427 its reverse (724502552), we get a palindrome (979707979).

The spelling of 255205427 in words is "two hundred fifty-five million, two hundred five thousand, four hundred twenty-seven".