25240235 has 4 divisors (see below), whose sum is σ = 30288288. Its totient is φ = 20192184.

The previous prime is 25240207. The next prime is 25240277. The reversal of 25240235 is 53204252.

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 25240235 - 2⁸ = 25239979 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 25240235.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524019 + ... + 2524028.

It is an arithmetic number, because the mean of its divisors is an integer number (7572072).

Almost surely, 2^25240235 is an apocalyptic number.

25240235 is a deficient number, since it is larger than the sum of its proper divisors (5048053).

25240235 is an equidigital number, since it uses as much as digits as its factorization.

25240235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048052.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 25240235 is about 5023.9660627835. The cubic root of 25240235 is about 293.3353915432.

Adding to 25240235 its reverse (53204252), we get a palindrome (78444487).

The spelling of 25240235 in words is "twenty-five million, two hundred forty thousand, two hundred thirty-five".