25020841 has 4 divisors (see below), whose sum is σ = 25250500. Its totient is φ = 24791184.

The previous prime is 25020811. The next prime is 25020887. The reversal of 25020841 is 14802052.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19545241 + 5475600 = 4421^2 + 2340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25020841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25020811) 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, 114666 + ... + 114883.

It is an arithmetic number, because the mean of its divisors is an integer number (6312625).

Almost surely, 2^25020841 is an apocalyptic number.

It is an amenable number.

25020841 is a deficient number, since it is larger than the sum of its proper divisors (229659).

25020841 is a wasteful number, since it uses less digits than its factorization.

25020841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229658.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 25020841 is about 5002.0836658337. The cubic root of 25020841 is about 292.4830038582.

Adding to 25020841 its reverse (14802052), we get a palindrome (39822893).

The spelling of 25020841 in words is "twenty-five million, twenty thousand, eight hundred forty-one".