26320564 has 24 divisors (see below), whose sum is σ = 47351808. Its totient is φ = 12795360.

The previous prime is 26320561. The next prime is 26320583. The reversal of 26320564 is 46502362.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26320561) 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 7 ways as a sum of consecutive naturals, for example, 35542 + ... + 36274.

It is an arithmetic number, because the mean of its divisors is an integer number (1972992).

Almost surely, 2^26320564 is an apocalyptic number.

It is an amenable number.

26320564 is a deficient number, since it is larger than the sum of its proper divisors (21031244).

26320564 is a wasteful number, since it uses less digits than its factorization.

26320564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 26320564 is about 5130.3571025807. The cubic root of 26320564 is about 297.4621621722.

The spelling of 26320564 in words is "twenty-six million, three hundred twenty thousand, five hundred sixty-four".