255633671 has 2 divisors, whose sum is σ = 255633672. Its totient is φ = 255633670.

The previous prime is 255633577. The next prime is 255633689. The reversal of 255633671 is 176336552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255633671 - 2²⁶ = 188524807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255633071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127816835 + 127816836.

It is an arithmetic number, because the mean of its divisors is an integer number (127816836).

Almost surely, 2^255633671 is an apocalyptic number.

255633671 is a deficient number, since it is larger than the sum of its proper divisors (1).

255633671 is an equidigital number, since it uses as much as digits as its factorization.

255633671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 38.

The square root of 255633671 is about 15988.5481204517. The cubic root of 255633671 is about 634.6574058726.

The spelling of 255633671 in words is "two hundred fifty-five million, six hundred thirty-three thousand, six hundred seventy-one".