25284913 has 4 divisors (see below), whose sum is σ = 25300080. Its totient is φ = 25269748.

The previous prime is 25284907. The next prime is 25284923. The reversal of 25284913 is 31948252.

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 25284913 - 2⁵ = 25284881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25284923) 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, 4723 + ... + 8536.

It is an arithmetic number, because the mean of its divisors is an integer number (6325020).

Almost surely, 2^25284913 is an apocalyptic number.

It is an amenable number.

25284913 is a deficient number, since it is larger than the sum of its proper divisors (15167).

25284913 is a wasteful number, since it uses less digits than its factorization.

25284913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15166.

The product of its digits is 17280, while the sum is 34.

The square root of 25284913 is about 5028.4105838724. The cubic root of 25284913 is about 293.5083681869.

The spelling of 25284913 in words is "twenty-five million, two hundred eighty-four thousand, nine hundred thirteen".