26216251 has 8 divisors (see below), whose sum is σ = 27442080. Its totient is φ = 24997632.

The previous prime is 26216231. The next prime is 26216263. The reversal of 26216251 is 15261262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26216251 - 2⁷ = 26216123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26216231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6505 + ... + 9733.

It is an arithmetic number, because the mean of its divisors is an integer number (3430260).

Almost surely, 2^26216251 is an apocalyptic number.

26216251 is a deficient number, since it is larger than the sum of its proper divisors (1225829).

26216251 is a wasteful number, since it uses less digits than its factorization.

26216251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3605.

The product of its digits is 1440, while the sum is 25.

The square root of 26216251 is about 5120.1807585280. The cubic root of 26216251 is about 297.0686770331.

The spelling of 26216251 in words is "twenty-six million, two hundred sixteen thousand, two hundred fifty-one".