25352245 has 4 divisors (see below), whose sum is σ = 30422700. Its totient is φ = 20281792.

The previous prime is 25352231. The next prime is 25352263. The reversal of 25352245 is 54225352.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3017169 + 22335076 = 1737^2 + 4726^2 .

It is a cyclic number.

It is not a de Polignac number, because 25352245 - 2¹⁷ = 25221173 is a prime.

It is a congruent number.

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, 2535220 + ... + 2535229.

It is an arithmetic number, because the mean of its divisors is an integer number (7605675).

Almost surely, 2^25352245 is an apocalyptic number.

It is an amenable number.

25352245 is a deficient number, since it is larger than the sum of its proper divisors (5070455).

25352245 is an equidigital number, since it uses as much as digits as its factorization.

25352245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5070454.

The product of its digits is 12000, while the sum is 28.

The square root of 25352245 is about 5035.1012899444. The cubic root of 25352245 is about 293.7686681964.

Adding to 25352245 its reverse (54225352), we get a palindrome (79577597).

The spelling of 25352245 in words is "twenty-five million, three hundred fifty-two thousand, two hundred forty-five".