25525235 has 4 divisors (see below), whose sum is σ = 30630288. Its totient is φ = 20420184.

The previous prime is 25525223. The next prime is 25525237. The reversal of 25525235 is 53252552.

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

It is a cyclic number.

It is not a de Polignac number, because 25525235 - 2¹⁴ = 25508851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25525198 and 25525207.

It is not an unprimeable number, because it can be changed into a prime (25525237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2552519 + ... + 2552528.

It is an arithmetic number, because the mean of its divisors is an integer number (7657572).

Almost surely, 2^25525235 is an apocalyptic number.

25525235 is a deficient number, since it is larger than the sum of its proper divisors (5105053).

25525235 is an equidigital number, since it uses as much as digits as its factorization.

25525235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105052.

The product of its digits is 15000, while the sum is 29.

The square root of 25525235 is about 5052.2504886436. The cubic root of 25525235 is about 294.4353269859.

Adding to 25525235 its reverse (53252552), we get a palindrome (78777787).

The spelling of 25525235 in words is "twenty-five million, five hundred twenty-five thousand, two hundred thirty-five".