259435427 has 2 divisors, whose sum is σ = 259435428. Its totient is φ = 259435426.

The previous prime is 259435417. The next prime is 259435459. The reversal of 259435427 is 724534952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 259435427 - 2⁴ = 259435411 is a prime.

It is not a weakly prime, because it can be changed into another prime (259435417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129717713 + 129717714.

It is an arithmetic number, because the mean of its divisors is an integer number (129717714).

Almost surely, 2^259435427 is an apocalyptic number.

259435427 is a deficient number, since it is larger than the sum of its proper divisors (1).

259435427 is an equidigital number, since it uses as much as digits as its factorization.

259435427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 41.

The square root of 259435427 is about 16106.9993170671. Note that the first 3 decimals coincide. The cubic root of 259435427 is about 637.7881220750.

The spelling of 259435427 in words is "two hundred fifty-nine million, four hundred thirty-five thousand, four hundred twenty-seven".