259605473 has 2 divisors, whose sum is σ = 259605474. Its totient is φ = 259605472.

The previous prime is 259605469. The next prime is 259605497. The reversal of 259605473 is 374506952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224760064 + 34845409 = 14992^2 + 5903^2 .

It is a cyclic number.

It is not a de Polignac number, because 259605473 - 2² = 259605469 is a prime.

It is a super-3 number, since 3×259605473³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 259605473.

It is not a weakly prime, because it can be changed into another prime (259605403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129802736 + 129802737.

It is an arithmetic number, because the mean of its divisors is an integer number (129802737).

Almost surely, 2^259605473 is an apocalyptic number.

It is an amenable number.

259605473 is a deficient number, since it is larger than the sum of its proper divisors (1).

259605473 is an equidigital number, since it uses as much as digits as its factorization.

259605473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 259605473 is about 16112.2770892261. The cubic root of 259605473 is about 637.9274369375.

The spelling of 259605473 in words is "two hundred fifty-nine million, six hundred five thousand, four hundred seventy-three".