1425825 has 18 divisors (see below), whose sum is σ = 2554214. Its totient is φ = 760320.

The previous prime is 1425821. The next prime is 1425863. The reversal of 1425825 is 5285241.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 42849 + 1382976 = 207^2 + 1176^2 .

It is not a de Polignac number, because 1425825 - 2² = 1425821 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

1425825 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1425821) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2944 + ... + 3393.

2^1425825 is an apocalyptic number.

1425825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1425825 is a deficient number, since it is larger than the sum of its proper divisors (1128389).

1425825 is a wasteful number, since it uses less digits than its factorization.

1425825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6353 (or 6345 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 1425825 is about 1194.0791431057. The cubic root of 1425825 is about 112.5525680252.

The spelling of 1425825 in words is "one million, four hundred twenty-five thousand, eight hundred twenty-five".