25630426 has 8 divisors (see below), whose sum is σ = 39097440. Its totient is φ = 12597948.

The previous prime is 25630421. The next prime is 25630427. The reversal of 25630426 is 62403652.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25630394 and 25630403.

It is not an unprimeable number, because it can be changed into a prime (25630421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108486 + ... + 108721.

It is an arithmetic number, because the mean of its divisors is an integer number (4887180).

Almost surely, 2^25630426 is an apocalyptic number.

25630426 is a deficient number, since it is larger than the sum of its proper divisors (13467014).

25630426 is a wasteful number, since it uses less digits than its factorization.

25630426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217268.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 25630426 is about 5062.6500965403. The cubic root of 25630426 is about 294.8392344377.

The spelling of 25630426 in words is "twenty-five million, six hundred thirty thousand, four hundred twenty-six".