25545285 has 12 divisors (see below), whose sum is σ = 44278572. Its totient is φ = 13624128.

The previous prime is 25545283. The next prime is 25545323. The reversal of 25545285 is 58254552.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13704804 + 11840481 = 3702^2 + 3441^2 .

It is not a de Polignac number, because 25545285 - 2¹ = 25545283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25545283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283792 + ... + 283881.

It is an arithmetic number, because the mean of its divisors is an integer number (3689881).

Almost surely, 2^25545285 is an apocalyptic number.

It is an amenable number.

25545285 is a deficient number, since it is larger than the sum of its proper divisors (18733287).

25545285 is a wasteful number, since it uses less digits than its factorization.

25545285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567684 (or 567681 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The square root of 25545285 is about 5054.2343633828. The cubic root of 25545285 is about 294.5123995152.

The spelling of 25545285 in words is "twenty-five million, five hundred forty-five thousand, two hundred eighty-five".