25630026 has 16 divisors (see below), whose sum is σ = 53028000. Its totient is φ = 8248688.

The previous prime is 25630009. The next prime is 25630039. The reversal of 25630026 is 62003652.

It is a junction number, because it is equal to n+sod(n) for n = 25629978 and 25630005.

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 7 ways as a sum of consecutive naturals, for example, 73476 + ... + 73823.

It is an arithmetic number, because the mean of its divisors is an integer number (3314250).

Almost surely, 2^25630026 is an apocalyptic number.

25630026 is an abundant number, since it is smaller than the sum of its proper divisors (27397974).

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

25630026 is a wasteful number, since it uses less digits than its factorization.

25630026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147333.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 25630026 is about 5062.6105913846. The cubic root of 25630026 is about 294.8377006317.

Adding to 25630026 its reverse (62003652), we get a palindrome (87633678).

The spelling of 25630026 in words is "twenty-five million, six hundred thirty thousand, twenty-six".