25422345 has 24 divisors (see below), whose sum is σ = 47456136. Its totient is φ = 12515328.

The previous prime is 25422329. The next prime is 25422373. The reversal of 25422345 is 54322452.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 741321 + 24681024 = 861^2 + 4968^2 .

It is not a de Polignac number, because 25422345 - 2⁴ = 25422329 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 21144 + ... + 22313.

It is an arithmetic number, because the mean of its divisors is an integer number (1977339).

Almost surely, 2^25422345 is an apocalyptic number.

It is an amenable number.

25422345 is a deficient number, since it is larger than the sum of its proper divisors (22033791).

25422345 is a wasteful number, since it uses less digits than its factorization.

25422345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43481 (or 43478 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 25422345 is about 5042.0576156962. The cubic root of 25422345 is about 294.0391798403.

Adding to 25422345 its reverse (54322452), we get a palindrome (79744797).

The spelling of 25422345 in words is "twenty-five million, four hundred twenty-two thousand, three hundred forty-five".