26056551 has 4 divisors (see below), whose sum is σ = 34742072. Its totient is φ = 17371032.

The previous prime is 26056531. The next prime is 26056567. The reversal of 26056551 is 15565062.

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

It is not a de Polignac number, because 26056551 - 2⁵ = 26056519 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 (26056531) 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, 4342756 + ... + 4342761.

It is an arithmetic number, because the mean of its divisors is an integer number (8685518).

Almost surely, 2^26056551 is an apocalyptic number.

26056551 is a deficient number, since it is larger than the sum of its proper divisors (8685521).

26056551 is an equidigital number, since it uses as much as digits as its factorization.

26056551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685520.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 26056551 is about 5104.5617833463. The cubic root of 26056551 is about 296.4642360700.

The spelling of 26056551 in words is "twenty-six million, fifty-six thousand, five hundred fifty-one".