26516249 has 4 divisors (see below), whose sum is σ = 26526564. Its totient is φ = 26505936.

The previous prime is 26516233. The next prime is 26516257. The reversal of 26516249 is 94261562.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11055625 + 15460624 = 3325^2 + 3932^2 .

It is a cyclic number.

It is not a de Polignac number, because 26516249 - 2⁴ = 26516233 is a prime.

It is a super-2 number, since 2×26516249² = 1406222922060002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26516279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2159 + ... + 7595.

It is an arithmetic number, because the mean of its divisors is an integer number (6631641).

Almost surely, 2^26516249 is an apocalyptic number.

It is an amenable number.

26516249 is a deficient number, since it is larger than the sum of its proper divisors (10315).

26516249 is an equidigital number, since it uses as much as digits as its factorization.

26516249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10314.

The product of its digits is 25920, while the sum is 35.

The square root of 26516249 is about 5149.3930710327. The cubic root of 26516249 is about 298.1975215572.

The spelling of 26516249 in words is "twenty-six million, five hundred sixteen thousand, two hundred forty-nine".