26056511 has 4 divisors (see below), whose sum is σ = 28060872. Its totient is φ = 24052152.

The previous prime is 26056507. The next prime is 26056517. The reversal of 26056511 is 11565062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26056511 - 2² = 26056507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26056517) 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, 1002161 + ... + 1002186.

It is an arithmetic number, because the mean of its divisors is an integer number (7015218).

Almost surely, 2^26056511 is an apocalyptic number.

26056511 is a deficient number, since it is larger than the sum of its proper divisors (2004361).

26056511 is a wasteful number, since it uses less digits than its factorization.

26056511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004360.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 26056511 is about 5104.5578652808. The cubic root of 26056511 is about 296.4640843669.

The spelling of 26056511 in words is "twenty-six million, fifty-six thousand, five hundred eleven".