25484645 has 4 divisors (see below), whose sum is σ = 30581580. Its totient is φ = 20387712.

The previous prime is 25484633. The next prime is 25484647. The reversal of 25484645 is 54648452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12967201 + 12517444 = 3601^2 + 3538^2 .

It is a cyclic number.

It is not a de Polignac number, because 25484645 - 2¹⁰ = 25483621 is a prime.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 25484599 and 25484608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25484647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2548460 + ... + 2548469.

It is an arithmetic number, because the mean of its divisors is an integer number (7645395).

Almost surely, 2^25484645 is an apocalyptic number.

It is an amenable number.

25484645 is a deficient number, since it is larger than the sum of its proper divisors (5096935).

25484645 is an equidigital number, since it uses as much as digits as its factorization.

25484645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5096934.

The product of its digits is 153600, while the sum is 38.

The square root of 25484645 is about 5048.2318686843. The cubic root of 25484645 is about 294.2791747130.

The spelling of 25484645 in words is "twenty-five million, four hundred eighty-four thousand, six hundred forty-five".