25250013 has 12 divisors (see below), whose sum is σ = 36761088. Its totient is φ = 16700040.

The previous prime is 25250003. The next prime is 25250033. The reversal of 25250013 is 31005252.

It is a happy number.

It is not a de Polignac number, because 25250013 - 2⁹ = 25249501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9903 + ... + 12188.

It is an arithmetic number, because the mean of its divisors is an integer number (3063424).

Almost surely, 2^25250013 is an apocalyptic number.

It is an amenable number.

25250013 is a deficient number, since it is larger than the sum of its proper divisors (11511075).

25250013 is a wasteful number, since it uses less digits than its factorization.

25250013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22224 (or 22221 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 25250013 is about 5024.9391041086. The cubic root of 25250013 is about 293.3732657700.

Adding to 25250013 its reverse (31005252), we get a palindrome (56255265).

The spelling of 25250013 in words is "twenty-five million, two hundred fifty thousand, thirteen".