26555247253 has 4 divisors (see below), whose sum is σ = 27056289708. Its totient is φ = 26054204800.

The previous prime is 26555247221. The next prime is 26555247281. The reversal of 26555247253 is 35274255562.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14052205764 + 12503041489 = 118542^2 + 111817^2 .

It is a cyclic number.

It is not a de Polignac number, because 26555247253 - 2⁵ = 26555247221 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 (26555247203) 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, 250521148 + ... + 250521253.

It is an arithmetic number, because the mean of its divisors is an integer number (6764072427).

Almost surely, 2^26555247253 is an apocalyptic number.

It is an amenable number.

26555247253 is a deficient number, since it is larger than the sum of its proper divisors (501042455).

26555247253 is an equidigital number, since it uses as much as digits as its factorization.

26555247253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501042454.

The product of its digits is 2520000, while the sum is 46.

The spelling of 26555247253 in words is "twenty-six billion, five hundred fifty-five million, two hundred forty-seven thousand, two hundred fifty-three".