25636130 has 64 divisors (see below), whose sum is σ = 53343360. Its totient is φ = 8792064.

The previous prime is 25636129. The next prime is 25636133. The reversal of 25636130 is 3163652.

It is a super-2 number, since 2×25636130² = 1314422322753800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 25636130.

It is not an unprimeable number, because it can be changed into a prime (25636133) 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 31 ways as a sum of consecutive naturals, for example, 239537 + ... + 239643.

It is an arithmetic number, because the mean of its divisors is an integer number (833490).

Almost surely, 2^25636130 is an apocalyptic number.

25636130 is an abundant number, since it is smaller than the sum of its proper divisors (27707230).

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

25636130 is a wasteful number, since it uses less digits than its factorization.

25636130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243.

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

The square root of 25636130 is about 5063.2134065236. The cubic root of 25636130 is about 294.8611047759.

Adding to 25636130 its reverse (3163652), we get a palindrome (28799782).

The spelling of 25636130 in words is "twenty-five million, six hundred thirty-six thousand, one hundred thirty".