25817241 has 16 divisors (see below), whose sum is σ = 35334144. Its totient is φ = 16759824.

The previous prime is 25817227. The next prime is 25817261. The reversal of 25817241 is 14271852.

It is not a de Polignac number, because 25817241 - 2⁹ = 25816729 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25817199 and 25817208.

It is not an unprimeable number, because it can be changed into a prime (25817261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39580 + ... + 40226.

It is an arithmetic number, because the mean of its divisors is an integer number (2208384).

Almost surely, 2^25817241 is an apocalyptic number.

It is an amenable number.

25817241 is a deficient number, since it is larger than the sum of its proper divisors (9516903).

25817241 is a wasteful number, since it uses less digits than its factorization.

25817241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980.

The product of its digits is 4480, while the sum is 30.

The square root of 25817241 is about 5081.0669155208. The cubic root of 25817241 is about 295.5538422450.

The spelling of 25817241 in words is "twenty-five million, eight hundred seventeen thousand, two hundred forty-one".