25825243 has 4 divisors (see below), whose sum is σ = 25836328. Its totient is φ = 25814160.

The previous prime is 25825229. The next prime is 25825253. The reversal of 25825243 is 34252852.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25825243 - 2⁹ = 25824731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25825213) 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, 546 + ... + 7207.

It is an arithmetic number, because the mean of its divisors is an integer number (6459082).

Almost surely, 2^25825243 is an apocalyptic number.

25825243 is a deficient number, since it is larger than the sum of its proper divisors (11085).

25825243 is an equidigital number, since it uses as much as digits as its factorization.

25825243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11084.

The product of its digits is 19200, while the sum is 31.

The square root of 25825243 is about 5081.8542875608. The cubic root of 25825243 is about 295.5843745231.

The spelling of 25825243 in words is "twenty-five million, eight hundred twenty-five thousand, two hundred forty-three".