25331426 has 4 divisors (see below), whose sum is σ = 37997142. Its totient is φ = 12665712.

The previous prime is 25331417. The next prime is 25331477. The reversal of 25331426 is 62413352.

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., 24512401 + 819025 = 4951^2 + 905^2 .

It is a super-2 number, since 2×25331426² = 1283362286386952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25331395 and 25331404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6332855 + ... + 6332858.

Almost surely, 2^25331426 is an apocalyptic number.

25331426 is a deficient number, since it is larger than the sum of its proper divisors (12665716).

25331426 is a wasteful number, since it uses less digits than its factorization.

25331426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12665715.

The product of its digits is 4320, while the sum is 26.

The square root of 25331426 is about 5033.0334789270. The cubic root of 25331426 is about 293.6882329162.

Adding to 25331426 its reverse (62413352), we get a palindrome (87744778).

The spelling of 25331426 in words is "twenty-five million, three hundred thirty-one thousand, four hundred twenty-six".