25442305 has 8 divisors (see below), whose sum is σ = 34892352. Its totient is φ = 17446128.

The previous prime is 25442303. The next prime is 25442323. The reversal of 25442305 is 50324452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25442305 - 2¹ = 25442303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25442305.

It is not an unprimeable number, because it can be changed into a prime (25442303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363427 + ... + 363496.

It is an arithmetic number, because the mean of its divisors is an integer number (4361544).

Almost surely, 2^25442305 is an apocalyptic number.

It is an amenable number.

25442305 is a deficient number, since it is larger than the sum of its proper divisors (9450047).

25442305 is an equidigital number, since it uses as much as digits as its factorization.

25442305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726935.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 25442305 is about 5044.0365779800. The cubic root of 25442305 is about 294.1161132979.

Adding to 25442305 its reverse (50324452), we get a palindrome (75766757).

The spelling of 25442305 in words is "twenty-five million, four hundred forty-two thousand, three hundred five".