255290473 has 2 divisors, whose sum is σ = 255290474. Its totient is φ = 255290472.

The previous prime is 255290471. The next prime is 255290507. The reversal of 255290473 is 374092552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171164889 + 84125584 = 13083^2 + 9172^2 .

It is a cyclic number.

It is not a de Polignac number, because 255290473 - 2¹ = 255290471 is a prime.

Together with 255290471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (255290471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127645236 + 127645237.

It is an arithmetic number, because the mean of its divisors is an integer number (127645237).

Almost surely, 2^255290473 is an apocalyptic number.

It is an amenable number.

255290473 is a deficient number, since it is larger than the sum of its proper divisors (1).

255290473 is an equidigital number, since it uses as much as digits as its factorization.

255290473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 255290473 is about 15977.8118965020. The cubic root of 255290473 is about 634.3732613799.

It can be divided in two parts, 2552 and 90473, that added together give a square (93025 = 305²).

The spelling of 255290473 in words is "two hundred fifty-five million, two hundred ninety thousand, four hundred seventy-three".