26729225 has 12 divisors (see below), whose sum is σ = 33771276. Its totient is φ = 20978880.

The previous prime is 26729203. The next prime is 26729233. The reversal of 26729225 is 52292762.

It can be written as a sum of positive squares in 6 ways, for example, as 3041536 + 23687689 = 1744^2 + 4867^2 .

It is not a de Polignac number, because 26729225 - 2⁸ = 26728969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8762 + ... + 11411.

It is an arithmetic number, because the mean of its divisors is an integer number (2814273).

Almost surely, 2^26729225 is an apocalyptic number.

26729225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26729225 is a deficient number, since it is larger than the sum of its proper divisors (7042051).

26729225 is a wasteful number, since it uses less digits than its factorization.

26729225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20236 (or 20231 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 26729225 is about 5170.0314312391. The cubic root of 26729225 is about 298.9937583288.

It can be divided in two parts, 267 and 29225, that added together give a palindrome (29492).

The spelling of 26729225 in words is "twenty-six million, seven hundred twenty-nine thousand, two hundred twenty-five".