25663322 has 4 divisors (see below), whose sum is σ = 38494986. Its totient is φ = 12831660.

The previous prime is 25663321. The next prime is 25663327. The reversal of 25663322 is 22336652.

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., 13476241 + 12187081 = 3671^2 + 3491^2 .

It is not an unprimeable number, because it can be changed into a prime (25663321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6415829 + ... + 6415832.

Almost surely, 2^25663322 is an apocalyptic number.

25663322 is a deficient number, since it is larger than the sum of its proper divisors (12831664).

25663322 is a wasteful number, since it uses less digits than its factorization.

25663322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12831663.

The product of its digits is 12960, while the sum is 29.

The square root of 25663322 is about 5065.8979460704. The cubic root of 25663322 is about 294.9653200638.

Adding to 25663322 its reverse (22336652), we get a palindrome (47999974).

The spelling of 25663322 in words is "twenty-five million, six hundred sixty-three thousand, three hundred twenty-two".