25830136 has 16 divisors (see below), whose sum is σ = 48486600. Its totient is φ = 12900384.

The previous prime is 25830109. The next prime is 25830151. The reversal of 25830136 is 63103852.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10566 + ... + 12778.

Almost surely, 2^25830136 is an apocalyptic number.

It is an amenable number.

25830136 is a deficient number, since it is larger than the sum of its proper divisors (22656464).

25830136 is a wasteful number, since it uses less digits than its factorization.

25830136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678 (or 3674 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 25830136 is about 5082.3356835219. The cubic root of 25830136 is about 295.6030410530.

Adding to 25830136 its reverse (63103852), we get a palindrome (88933988).

The spelling of 25830136 in words is "twenty-five million, eight hundred thirty thousand, one hundred thirty-six".