25245235 has 4 divisors (see below), whose sum is σ = 30294288. Its totient is φ = 20196184.

The previous prime is 25245229. The next prime is 25245247. The reversal of 25245235 is 53254252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25245235 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524519 + ... + 2524528.

It is an arithmetic number, because the mean of its divisors is an integer number (7573572).

Almost surely, 2^25245235 is an apocalyptic number.

25245235 is a deficient number, since it is larger than the sum of its proper divisors (5049053).

25245235 is an equidigital number, since it uses as much as digits as its factorization.

25245235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049052.

The product of its digits is 12000, while the sum is 28.

The square root of 25245235 is about 5024.4636529683. The cubic root of 25245235 is about 293.3547598272.

Adding to 25245235 its reverse (53254252), we get a palindrome (78499487).

The spelling of 25245235 in words is "twenty-five million, two hundred forty-five thousand, two hundred thirty-five".