26256778 has 8 divisors (see below), whose sum is σ = 39425220. Its totient is φ = 13115040.

The previous prime is 26256767. The next prime is 26256781. The reversal of 26256778 is 87765262.

It can be written as a sum of positive squares in 2 ways, for example, as 25270729 + 986049 = 5027^2 + 993^2 .

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

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4003 + ... + 8278.

Almost surely, 2^26256778 is an apocalyptic number.

26256778 is a deficient number, since it is larger than the sum of its proper divisors (13168442).

26256778 is a wasteful number, since it uses less digits than its factorization.

26256778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13352.

The product of its digits is 282240, while the sum is 43.

The square root of 26256778 is about 5124.1368053556. The cubic root of 26256778 is about 297.2216750578.

The spelling of 26256778 in words is "twenty-six million, two hundred fifty-six thousand, seven hundred seventy-eight".