25053013 has 4 divisors (see below), whose sum is σ = 25916940. Its totient is φ = 24189088.

The previous prime is 25052987. The next prime is 25053031. The reversal of 25053013 is 31035052.

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 16184529 + 8868484 = 4023^2 + 2978^2 .

It is a cyclic number.

It is not a de Polignac number, because 25053013 - 2⁵ = 25052981 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 (25053043) 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, 431920 + ... + 431977.

It is an arithmetic number, because the mean of its divisors is an integer number (6479235).

Almost surely, 2^25053013 is an apocalyptic number.

It is an amenable number.

25053013 is a deficient number, since it is larger than the sum of its proper divisors (863927).

25053013 is an equidigital number, since it uses as much as digits as its factorization.

25053013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863926.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 25053013 is about 5005.2984925976. The cubic root of 25053013 is about 292.6083091724.

Adding to 25053013 its reverse (31035052), we get a palindrome (56088065).

The spelling of 25053013 in words is "twenty-five million, fifty-three thousand, thirteen".