25486630 has 16 divisors (see below), whose sum is σ = 49405104. Its totient is φ = 9410400.

The previous prime is 25486609. The next prime is 25486631. The reversal of 25486630 is 3668452.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25486631) 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, 97896 + ... + 98155.

It is an arithmetic number, because the mean of its divisors is an integer number (3087819).

Almost surely, 2^25486630 is an apocalyptic number.

25486630 is a deficient number, since it is larger than the sum of its proper divisors (23918474).

25486630 is a wasteful number, since it uses less digits than its factorization.

25486630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196071.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 25486630 is about 5048.4284683454. The cubic root of 25486630 is about 294.2868149867.

The spelling of 25486630 in words is "twenty-five million, four hundred eighty-six thousand, six hundred thirty".