26015864 has 64 divisors (see below), whose sum is σ = 60000000. Its totient is φ = 10541664.

The previous prime is 26015861. The next prime is 26015881. The reversal of 26015864 is 46851062.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 26015864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26015861) 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 15 ways as a sum of consecutive naturals, for example, 51887 + ... + 52385.

It is an arithmetic number, because the mean of its divisors is an integer number (937500).

Almost surely, 2^26015864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26015864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30000000).

26015864 is an abundant number, since it is smaller than the sum of its proper divisors (33984136).

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

26015864 is a wasteful number, since it uses less digits than its factorization.

26015864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 26015864 is about 5100.5748695613. The cubic root of 26015864 is about 296.3098472028.

The spelling of 26015864 in words is "twenty-six million, fifteen thousand, eight hundred sixty-four".