25825013 has 4 divisors (see below), whose sum is σ = 25846080. Its totient is φ = 25803948.

The previous prime is 25825003. The next prime is 25825027. The reversal of 25825013 is 31052852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25825013 - 2¹⁰ = 25823989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25825003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8573 + ... + 11186.

It is an arithmetic number, because the mean of its divisors is an integer number (6461520).

Almost surely, 2^25825013 is an apocalyptic number.

It is an amenable number.

25825013 is a deficient number, since it is larger than the sum of its proper divisors (21067).

25825013 is a wasteful number, since it uses less digits than its factorization.

25825013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21066.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 25825013 is about 5081.8316579753. The cubic root of 25825013 is about 295.5834970275.

Adding to 25825013 its reverse (31052852), we get a palindrome (56877865).

The spelling of 25825013 in words is "twenty-five million, eight hundred twenty-five thousand, thirteen".