25252505 has 8 divisors (see below), whose sum is σ = 31620672. Its totient is φ = 19323568.

The previous prime is 25252457. The next prime is 25252529. The reversal of 25252505 is 50525252.

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 25252505 - 2⁶ = 25252441 is a prime.

It is an alternating number because its digits alternate between even and odd.

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, 109679 + ... + 109908.

It is an arithmetic number, because the mean of its divisors is an integer number (3952584).

Almost surely, 2^25252505 is an apocalyptic number.

It is an amenable number.

25252505 is a deficient number, since it is larger than the sum of its proper divisors (6368167).

25252505 is a wasteful number, since it uses less digits than its factorization.

25252505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219615.

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 25252505 is about 5025.1870611948. The cubic root of 25252505 is about 293.3829167502.

Adding to 25252505 its reverse (50525252), we get a palindrome (75777757).

The spelling of 25252505 in words is "twenty-five million, two hundred fifty-two thousand, five hundred five".