25256426 has 8 divisors (see below), whose sum is σ = 40798884. Its totient is φ = 11656800.

The previous prime is 25256383. The next prime is 25256431. The reversal of 25256426 is 62465252.

It can be written as a sum of positive squares in 2 ways, for example, as 18931201 + 6325225 = 4351^2 + 2515^2 .

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 = 25256392 and 25256401.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 485675 + ... + 485726.

Almost surely, 2^25256426 is an apocalyptic number.

25256426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25256426 is a deficient number, since it is larger than the sum of its proper divisors (15542458).

25256426 is a wasteful number, since it uses less digits than its factorization.

25256426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971416.

The product of its digits is 28800, while the sum is 32.

The square root of 25256426 is about 5025.5771807823. The cubic root of 25256426 is about 293.3981006549.

The spelling of 25256426 in words is "twenty-five million, two hundred fifty-six thousand, four hundred twenty-six".