25824213 has 12 divisors (see below), whose sum is σ = 37687468. Its totient is φ = 17038080.

The previous prime is 25824203. The next prime is 25824217. The reversal of 25824213 is 31242852.

It can be written as a sum of positive squares in 2 ways, for example, as 15539364 + 10284849 = 3942^2 + 3207^2 .

It is not a de Polignac number, because 25824213 - 2⁸ = 25823957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25824217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13918 + ... + 15663.

Almost surely, 2^25824213 is an apocalyptic number.

It is an amenable number.

25824213 is a deficient number, since it is larger than the sum of its proper divisors (11863255).

25824213 is a wasteful number, since it uses less digits than its factorization.

25824213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29684 (or 29681 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 25824213 is about 5081.7529455888. The cubic root of 25824213 is about 295.5804448285.

The spelling of 25824213 in words is "twenty-five million, eight hundred twenty-four thousand, two hundred thirteen".