25783426 has 4 divisors (see below), whose sum is σ = 38675142. Its totient is φ = 12891712.

The previous prime is 25783423. The next prime is 25783427. The reversal of 25783426 is 62438752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14554225 + 11229201 = 3815^2 + 3351^2 .

It is not an unprimeable number, because it can be changed into a prime (25783421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6445855 + ... + 6445858.

Almost surely, 2^25783426 is an apocalyptic number.

25783426 is a deficient number, since it is larger than the sum of its proper divisors (12891716).

25783426 is a wasteful number, since it uses less digits than its factorization.

25783426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12891715.

The product of its digits is 80640, while the sum is 37.

The square root of 25783426 is about 5077.7382760438. The cubic root of 25783426 is about 295.4247486709.

The spelling of 25783426 in words is "twenty-five million, seven hundred eighty-three thousand, four hundred twenty-six".