25025305 has 8 divisors (see below), whose sum is σ = 30078792. Its totient is φ = 19987968.

The previous prime is 25025279. The next prime is 25025317. The reversal of 25025305 is 50352052.

It can be written as a sum of positive squares in 4 ways, for example, as 5550736 + 19474569 = 2356^2 + 4413^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25025305 - 2⁹ = 25024793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312 + ... + 7081.

It is an arithmetic number, because the mean of its divisors is an integer number (3759849).

Almost surely, 2^25025305 is an apocalyptic number.

It is an amenable number.

25025305 is a deficient number, since it is larger than the sum of its proper divisors (5053487).

25025305 is an equidigital number, since it uses as much as digits as its factorization.

25025305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8075.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 25025305 is about 5002.5298599808. The cubic root of 25025305 is about 292.5003969118.

Adding to 25025305 its reverse (50352052), we get a palindrome (75377357).

The spelling of 25025305 in words is "twenty-five million, twenty-five thousand, three hundred five".