25522663 has 6 divisors (see below), whose sum is σ = 26681144. Its totient is φ = 24412476.
The previous prime is 25522649. The next prime is 25522669. The reversal of 25522663 is 36622552.
It is not a de Polignac number, because 25522663 - 25 = 25522631 is a prime.
It is a super-2 number, since 2×255226632 = 1302812653223138, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25522669) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23595 + ... + 24652.
Almost surely, 225522663 is an apocalyptic number.
25522663 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
25522663 is a deficient number, since it is larger than the sum of its proper divisors (1158481).
25522663 is an equidigital number, since it uses as much as digits as its factorization.
25522663 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48293 (or 48270 counting only the distinct ones).
The product of its digits is 21600, while the sum is 31.
The square root of 25522663 is about 5051.9959421995. The cubic root of 25522663 is about 294.4254372552.
It can be divided in two parts, 2552 and 2663, that multiplied together give a palindrome (6795976).
The spelling of 25522663 in words is "twenty-five million, five hundred twenty-two thousand, six hundred sixty-three".
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