26564216 has 32 divisors (see below), whose sum is σ = 57095040. Its totient is φ = 11350368.

The previous prime is 26564207. The next prime is 26564231. The reversal of 26564216 is 61246562.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 28835 + ... + 29741.

It is an arithmetic number, because the mean of its divisors is an integer number (1784220).

Almost surely, 2^26564216 is an apocalyptic number.

It is an amenable number.

26564216 is an abundant number, since it is smaller than the sum of its proper divisors (30530824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26564216 is a wasteful number, since it uses less digits than its factorization.

26564216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443 (or 1439 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 26564216 is about 5154.0485057865. The cubic root of 26564216 is about 298.3772229953.

The spelling of 26564216 in words is "twenty-six million, five hundred sixty-four thousand, two hundred sixteen".