26056403 has 4 divisors (see below), whose sum is σ = 26079648. Its totient is φ = 26033160.

The previous prime is 26056397. The next prime is 26056417. The reversal of 26056403 is 30465062.

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 26056403 - 2¹⁸ = 25794259 is a prime.

It is a super-2 number, since 2×26056403² = 1357872274596818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26056423) 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, 9851 + ... + 12212.

It is an arithmetic number, because the mean of its divisors is an integer number (6519912).

Almost surely, 2^26056403 is an apocalyptic number.

26056403 is a deficient number, since it is larger than the sum of its proper divisors (23245).

26056403 is a wasteful number, since it uses less digits than its factorization.

26056403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23244.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 26056403 is about 5104.5472864888. The cubic root of 26056403 is about 296.4636747679.

The spelling of 26056403 in words is "twenty-six million, fifty-six thousand, four hundred three".