25130636 has 6 divisors (see below), whose sum is σ = 43978620. Its totient is φ = 12565316.

The previous prime is 25130629. The next prime is 25130653. The reversal of 25130636 is 63603152.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3141326 + ... + 3141333.

It is an arithmetic number, because the mean of its divisors is an integer number (7329770).

Almost surely, 2^25130636 is an apocalyptic number.

It is an amenable number.

25130636 is a deficient number, since it is larger than the sum of its proper divisors (18847984).

25130636 is a wasteful number, since it uses less digits than its factorization.

25130636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282663 (or 6282661 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 25130636 is about 5013.0465786785. The cubic root of 25130636 is about 292.9101985743.

Adding to 25130636 its reverse (63603152), we get a palindrome (88733788).

The spelling of 25130636 in words is "twenty-five million, one hundred thirty thousand, six hundred thirty-six".