26512249 has 4 divisors (see below), whose sum is σ = 26545060. Its totient is φ = 26479440.

The previous prime is 26512207. The next prime is 26512253. The reversal of 26512249 is 94221562.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7327849 + 19184400 = 2707^2 + 4380^2 .

It is a cyclic number.

It is not a de Polignac number, because 26512249 - 2¹⁹ = 25987961 is a prime.

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 26512249.

It is not an unprimeable number, because it can be changed into a prime (26512259) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15162 + ... + 16819.

It is an arithmetic number, because the mean of its divisors is an integer number (6636265).

Almost surely, 2^26512249 is an apocalyptic number.

It is an amenable number.

26512249 is a deficient number, since it is larger than the sum of its proper divisors (32811).

26512249 is an equidigital number, since it uses as much as digits as its factorization.

26512249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32810.

The product of its digits is 8640, while the sum is 31.

The square root of 26512249 is about 5149.0046610971. The cubic root of 26512249 is about 298.1825263484.

It can be divided in two parts, 2651 and 2249, that added together give a square (4900 = 70²).

The spelling of 26512249 in words is "twenty-six million, five hundred twelve thousand, two hundred forty-nine".