26305225 has 12 divisors (see below), whose sum is σ = 33235596. Its totient is φ = 20646080.

The previous prime is 26305219. The next prime is 26305259. The reversal of 26305225 is 52250362.

It can be written as a sum of positive squares in 6 ways, for example, as 1175056 + 25130169 = 1084^2 + 5013^2 .

It is not a de Polignac number, because 26305225 - 2³ = 26305217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26305225.

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 11 ways as a sum of consecutive naturals, for example, 8602 + ... + 11251.

It is an arithmetic number, because the mean of its divisors is an integer number (2769633).

Almost surely, 2^26305225 is an apocalyptic number.

26305225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26305225 is a deficient number, since it is larger than the sum of its proper divisors (6930371).

26305225 is a wasteful number, since it uses less digits than its factorization.

26305225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19916 (or 19911 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 26305225 is about 5128.8619595384. The cubic root of 26305225 is about 297.4043663140.

Adding to 26305225 its reverse (52250362), we get a palindrome (78555587).

The spelling of 26305225 in words is "twenty-six million, three hundred five thousand, two hundred twenty-five".