25478966 has 8 divisors (see below), whose sum is σ = 38240424. Its totient is φ = 12732160.

The previous prime is 25478953. The next prime is 25478969. The reversal of 25478966 is 66987452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25478966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25478969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3446 + ... + 7926.

It is an arithmetic number, because the mean of its divisors is an integer number (4780053).

Almost surely, 2^25478966 is an apocalyptic number.

25478966 is a deficient number, since it is larger than the sum of its proper divisors (12761458).

25478966 is a wasteful number, since it uses less digits than its factorization.

25478966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7326.

The product of its digits is 725760, while the sum is 47.

The square root of 25478966 is about 5047.6693631814. The cubic root of 25478966 is about 294.2573140254.

The spelling of 25478966 in words is "twenty-five million, four hundred seventy-eight thousand, nine hundred sixty-six".