26285081 has 4 divisors (see below), whose sum is σ = 26302500. Its totient is φ = 26267664.

The previous prime is 26285071. The next prime is 26285089. The reversal of 26285081 is 18058262.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18058262 = 2 ⋅9029131.

It can be written as a sum of positive squares in 2 ways, for example, as 5664400 + 20620681 = 2380^2 + 4541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26285081 is a prime.

It is a super-2 number, since 2×26285081² = 1381810966353122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26285089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6206 + ... + 9543.

It is an arithmetic number, because the mean of its divisors is an integer number (6575625).

Almost surely, 2^26285081 is an apocalyptic number.

It is an amenable number.

26285081 is a deficient number, since it is larger than the sum of its proper divisors (17419).

26285081 is a wasteful number, since it uses less digits than its factorization.

26285081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17418.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 26285081 is about 5126.8977949633. The cubic root of 26285081 is about 297.3284315464.

The spelling of 26285081 in words is "twenty-six million, two hundred eighty-five thousand, eighty-one".