26555013 has 8 divisors (see below), whose sum is σ = 39340800. Its totient is φ = 17703324.

The previous prime is 26554973. The next prime is 26555057. The reversal of 26555013 is 31055562.

26555013 is a `hidden beast` number, since 2 + 655 + 5 + 0 + 1 + 3 = 666.

It is not a de Polignac number, because 26555013 - 2⁹ = 26554501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 983519 = 26555013 / (2 + 6 + 5 + 5 + 5 + 0 + 1 + 3).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26555083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491733 + ... + 491786.

It is an arithmetic number, because the mean of its divisors is an integer number (4917600).

Almost surely, 2^26555013 is an apocalyptic number.

It is an amenable number.

26555013 is a deficient number, since it is larger than the sum of its proper divisors (12785787).

26555013 is an equidigital number, since it uses as much as digits as its factorization.

26555013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983528 (or 983522 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 26555013 is about 5153.1556351424. The cubic root of 26555013 is about 298.3427620655.

It can be divided in two parts, 265 and 55013, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 26555013 in words is "twenty-six million, five hundred fifty-five thousand, thirteen".