25298216 has 8 divisors (see below), whose sum is σ = 47434170. Its totient is φ = 12649104.

The previous prime is 25298213. The next prime is 25298243. The reversal of 25298216 is 61289252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22562500 + 2735716 = 4750^2 + 1654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (25298213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1581131 + ... + 1581146.

Almost surely, 2^25298216 is an apocalyptic number.

It is an amenable number.

25298216 is a deficient number, since it is larger than the sum of its proper divisors (22135954).

25298216 is a wasteful number, since it uses less digits than its factorization.

25298216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162283 (or 3162279 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 25298216 is about 5029.7331937191. The cubic root of 25298216 is about 293.5598330962.

The spelling of 25298216 in words is "twenty-five million, two hundred ninety-eight thousand, two hundred sixteen".