25616426 has 16 divisors (see below), whose sum is σ = 42268608. Its totient is φ = 11642620.

The previous prime is 25616419. The next prime is 25616471. The reversal of 25616426 is 62461652.

It is a junction number, because it is equal to n+sod(n) for n = 25616392 and 25616401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2150 + ... + 7473.

It is an arithmetic number, because the mean of its divisors is an integer number (2641788).

Almost surely, 2^25616426 is an apocalyptic number.

25616426 is a deficient number, since it is larger than the sum of its proper divisors (16652182).

25616426 is an equidigital number, since it uses as much as digits as its factorization.

25616426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9658 (or 9636 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 25616426 is about 5061.2672326207. The cubic root of 25616426 is about 294.7855417280.

The spelling of 25616426 in words is "twenty-five million, six hundred sixteen thousand, four hundred twenty-six".