259851425 has 6 divisors (see below), whose sum is σ = 322215798. Its totient is φ = 207881120.

The previous prime is 259851379. The next prime is 259851463. The reversal of 259851425 is 524158952.

259851425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 49224256 + 210627169 = 7016^2 + 14513^2 .

It is not a de Polignac number, because 259851425 - 2⁸ = 259851169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5197004 + ... + 5197053.

It is an arithmetic number, because the mean of its divisors is an integer number (53702633).

Almost surely, 2^259851425 is an apocalyptic number.

259851425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

259851425 is a deficient number, since it is larger than the sum of its proper divisors (62364373).

259851425 is a wasteful number, since it uses less digits than its factorization.

259851425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10394067 (or 10394062 counting only the distinct ones).

The product of its digits is 144000, while the sum is 41.

The square root of 259851425 is about 16119.9077230609. The cubic root of 259851425 is about 638.1288322882.

The spelling of 259851425 in words is "two hundred fifty-nine million, eight hundred fifty-one thousand, four hundred twenty-five".