25203713 has 4 divisors (see below), whose sum is σ = 26016768. Its totient is φ = 24390660.

The previous prime is 25203701. The next prime is 25203727. The reversal of 25203713 is 31730252.

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 25203713 - 2⁶ = 25203649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25203313) 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, 406481 + ... + 406542.

It is an arithmetic number, because the mean of its divisors is an integer number (6504192).

Almost surely, 2^25203713 is an apocalyptic number.

It is an amenable number.

25203713 is a deficient number, since it is larger than the sum of its proper divisors (813055).

25203713 is an equidigital number, since it uses as much as digits as its factorization.

25203713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813054.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 25203713 is about 5020.3299692351. The cubic root of 25203713 is about 293.1938402123.

Adding to 25203713 its reverse (31730252), we get a palindrome (56933965).

The spelling of 25203713 in words is "twenty-five million, two hundred three thousand, seven hundred thirteen".