25830425 has 12 divisors (see below), whose sum is σ = 32238636. Its totient is φ = 20529600.

The previous prime is 25830407. The next prime is 25830461. The reversal of 25830425 is 52403852.

It can be written as a sum of positive squares in 6 ways, for example, as 3655744 + 22174681 = 1912^2 + 4709^2 .

It is not a de Polignac number, because 25830425 - 2⁸ = 25830169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 635 + ... + 7215.

It is an arithmetic number, because the mean of its divisors is an integer number (2686553).

Almost surely, 2^25830425 is an apocalyptic number.

25830425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25830425 is a deficient number, since it is larger than the sum of its proper divisors (6408211).

25830425 is a wasteful number, since it uses less digits than its factorization.

25830425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6748 (or 6743 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 25830425 is about 5082.3641152519. The cubic root of 25830425 is about 295.6041434986.

The spelling of 25830425 in words is "twenty-five million, eight hundred thirty thousand, four hundred twenty-five".