25478116 has 6 divisors (see below), whose sum is σ = 44586710. Its totient is φ = 12739056.

The previous prime is 25478111. The next prime is 25478129. The reversal of 25478116 is 61187452.

It can be written as a sum of positive squares in only one way, i.e., 18455616 + 7022500 = 4296^2 + 2650^2 .

It is not an unprimeable number, because it can be changed into a prime (25478111) 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 as a sum of consecutive naturals, namely, 3184761 + ... + 3184768.

Almost surely, 2^25478116 is an apocalyptic number.

It is an amenable number.

25478116 is a deficient number, since it is larger than the sum of its proper divisors (19108594).

25478116 is a wasteful number, since it uses less digits than its factorization.

25478116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6369533 (or 6369531 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 25478116 is about 5047.5851652052. The cubic root of 25478116 is about 294.2540417642.

The spelling of 25478116 in words is "twenty-five million, four hundred seventy-eight thousand, one hundred sixteen".