255470647 has 2 divisors, whose sum is σ = 255470648. Its totient is φ = 255470646.

The previous prime is 255470627. The next prime is 255470669. The reversal of 255470647 is 746074552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255470647 - 2⁷ = 255470519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255470627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127735323 + 127735324.

It is an arithmetic number, because the mean of its divisors is an integer number (127735324).

Almost surely, 2^255470647 is an apocalyptic number.

255470647 is a deficient number, since it is larger than the sum of its proper divisors (1).

255470647 is an equidigital number, since it uses as much as digits as its factorization.

255470647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 255470647 is about 15983.4491584264. The cubic root of 255470647 is about 634.5224648712.

The spelling of 255470647 in words is "two hundred fifty-five million, four hundred seventy thousand, six hundred forty-seven".