25486986 has 16 divisors (see below), whose sum is σ = 58256064. Its totient is φ = 7281984.

The previous prime is 25486957. The next prime is 25486987. The reversal of 25486986 is 68968452.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25486987) 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 7 ways as a sum of consecutive naturals, for example, 303375 + ... + 303458.

It is an arithmetic number, because the mean of its divisors is an integer number (3641004).

Almost surely, 2^25486986 is an apocalyptic number.

25486986 is an abundant number, since it is smaller than the sum of its proper divisors (32769078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25486986 is a wasteful number, since it uses less digits than its factorization.

25486986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606845.

The product of its digits is 829440, while the sum is 48.

The square root of 25486986 is about 5048.4637267192. The cubic root of 25486986 is about 294.2881851904.

The spelling of 25486986 in words is "twenty-five million, four hundred eighty-six thousand, nine hundred eighty-six".