25485445 has 4 divisors (see below), whose sum is σ = 30582540. Its totient is φ = 20388352.

The previous prime is 25485419. The next prime is 25485451. The reversal of 25485445 is 54458452.

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 5262436 + 20223009 = 2294^2 + 4497^2 .

It is a cyclic number.

It is not a de Polignac number, because 25485445 - 2⁹ = 25484933 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2548540 + ... + 2548549.

It is an arithmetic number, because the mean of its divisors is an integer number (7645635).

Almost surely, 2^25485445 is an apocalyptic number.

It is an amenable number.

25485445 is a deficient number, since it is larger than the sum of its proper divisors (5097095).

25485445 is an equidigital number, since it uses as much as digits as its factorization.

25485445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097094.

The product of its digits is 128000, while the sum is 37.

The square root of 25485445 is about 5048.3111037257. The cubic root of 25485445 is about 294.2822539642.

The spelling of 25485445 in words is "twenty-five million, four hundred eighty-five thousand, four hundred forty-five".