25242226 has 4 divisors (see below), whose sum is σ = 37863342. Its totient is φ = 12621112.

The previous prime is 25242199. The next prime is 25242281. The reversal of 25242226 is 62224252.

It is a happy number.

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., 21613201 + 3629025 = 4649^2 + 1905^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25242226.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6310555 + ... + 6310558.

Almost surely, 2^25242226 is an apocalyptic number.

25242226 is a deficient number, since it is larger than the sum of its proper divisors (12621116).

25242226 is a wasteful number, since it uses less digits than its factorization.

25242226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12621115.

The product of its digits is 3840, while the sum is 25.

The square root of 25242226 is about 5024.1642090999. The cubic root of 25242226 is about 293.3431043003.

Adding to 25242226 its reverse (62224252), we get a palindrome (87466478).

The spelling of 25242226 in words is "twenty-five million, two hundred forty-two thousand, two hundred twenty-six".