25503713 has 4 divisors (see below), whose sum is σ = 25521408. Its totient is φ = 25486020.

The previous prime is 25503707. The next prime is 25503721. The reversal of 25503713 is 31730552.

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 25503713 - 2¹⁰ = 25502689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25503733) 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, 6473 + ... + 9638.

It is an arithmetic number, because the mean of its divisors is an integer number (6380352).

Almost surely, 2^25503713 is an apocalyptic number.

It is an amenable number.

25503713 is a deficient number, since it is larger than the sum of its proper divisors (17695).

25503713 is a wasteful number, since it uses less digits than its factorization.

25503713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17694.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 25503713 is about 5050.1200975818. The cubic root of 25503713 is about 294.3525511375.

The spelling of 25503713 in words is "twenty-five million, five hundred three thousand, seven hundred thirteen".