25163013 has 4 divisors (see below), whose sum is σ = 33550688. Its totient is φ = 16775340.

The previous prime is 25162999. The next prime is 25163029. The reversal of 25163013 is 31036152.

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 not a de Polignac number, because 25163013 - 2¹⁶ = 25097477 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25163063) 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, 4193833 + ... + 4193838.

It is an arithmetic number, because the mean of its divisors is an integer number (8387672).

Almost surely, 2^25163013 is an apocalyptic number.

It is an amenable number.

25163013 is a deficient number, since it is larger than the sum of its proper divisors (8387675).

25163013 is an equidigital number, since it uses as much as digits as its factorization.

25163013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8387674.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 25163013 is about 5016.2748130460. The cubic root of 25163013 is about 293.0359346640.

Adding to 25163013 its reverse (31036152), we get a palindrome (56199165).

The spelling of 25163013 in words is "twenty-five million, one hundred sixty-three thousand, thirteen".