25363513 has 4 divisors (see below), whose sum is σ = 28986880. Its totient is φ = 21740148.

The previous prime is 25363493. The next prime is 25363517. The reversal of 25363513 is 31536352.

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 25363513 - 2⁹ = 25363001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25363517) 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, 1811673 + ... + 1811686.

It is an arithmetic number, because the mean of its divisors is an integer number (7246720).

Almost surely, 2^25363513 is an apocalyptic number.

It is an amenable number.

25363513 is a deficient number, since it is larger than the sum of its proper divisors (3623367).

25363513 is an equidigital number, since it uses as much as digits as its factorization.

25363513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623366.

The product of its digits is 8100, while the sum is 28.

The square root of 25363513 is about 5036.2201103605. The cubic root of 25363513 is about 293.8121843303.

Adding to 25363513 its reverse (31536352), we get a palindrome (56899865).

The spelling of 25363513 in words is "twenty-five million, three hundred sixty-three thousand, five hundred thirteen".