26560220 has 24 divisors (see below), whose sum is σ = 55923504. Its totient is φ = 10596096.

The previous prime is 26560153. The next prime is 26560231. The reversal of 26560220 is 2206562.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7127 + ... + 10193.

It is an arithmetic number, because the mean of its divisors is an integer number (2330146).

Almost surely, 2^26560220 is an apocalyptic number.

26560220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26560220 is an abundant number, since it is smaller than the sum of its proper divisors (29363284).

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

26560220 is a wasteful number, since it uses less digits than its factorization.

26560220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509 (or 3507 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 26560220 is about 5153.6608347853. The cubic root of 26560220 is about 298.3622608225.

Adding to 26560220 its reverse (2206562), we get a palindrome (28766782).

The spelling of 26560220 in words is "twenty-six million, five hundred sixty thousand, two hundred twenty".