25448986 has 4 divisors (see below), whose sum is σ = 38173482. Its totient is φ = 12724492.

The previous prime is 25448953. The next prime is 25448989. The reversal of 25448986 is 68984452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24314761 + 1134225 = 4931^2 + 1065^2 .

It is not an unprimeable number, because it can be changed into a prime (25448989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6362245 + ... + 6362248.

Almost surely, 2^25448986 is an apocalyptic number.

25448986 is a deficient number, since it is larger than the sum of its proper divisors (12724496).

25448986 is a wasteful number, since it uses less digits than its factorization.

25448986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12724495.

The product of its digits is 552960, while the sum is 46.

The square root of 25448986 is about 5044.6988017125. The cubic root of 25448986 is about 294.1418554333.

The spelling of 25448986 in words is "twenty-five million, four hundred forty-eight thousand, nine hundred eighty-six".