1259425 has 6 divisors (see below), whose sum is σ = 1561718. Its totient is φ = 1007520.

The previous prime is 1259413. The next prime is 1259429. The reversal of 1259425 is 5249521.

It can be written as a sum of positive squares in 3 ways, for example, as 163216 + 1096209 = 404^2 + 1047^2 .

It is not a de Polignac number, because 1259425 - 2⁵ = 1259393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1259393 and 1259402.

It is not an unprimeable number, because it can be changed into a prime (1259429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25164 + ... + 25213.

2^1259425 is an apocalyptic number.

It is an amenable number.

1259425 is a deficient number, since it is larger than the sum of its proper divisors (302293).

1259425 is an equidigital number, since it uses as much as digits as its factorization.

1259425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50387 (or 50382 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 1259425 is about 1122.2410614480. The cubic root of 1259425 is about 107.9917975023.

The spelling of 1259425 in words is "one million, two hundred fifty-nine thousand, four hundred twenty-five".