27255400547 has 4 divisors (see below), whose sum is σ = 27920166456. Its totient is φ = 26590634640.

The previous prime is 27255400537. The next prime is 27255400553. The reversal of 27255400547 is 74500455272.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27255400547 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 664765867 = 27255400547 / (2 + 7 + 2 + 5 + 5 + 4 + 0 + 0 + 5 + 4 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27255400507) 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, 332382893 + ... + 332382974.

It is an arithmetic number, because the mean of its divisors is an integer number (6980041614).

Almost surely, 2^27255400547 is an apocalyptic number.

27255400547 is a deficient number, since it is larger than the sum of its proper divisors (664765909).

27255400547 is an equidigital number, since it uses as much as digits as its factorization.

27255400547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664765908.

The product of its (nonzero) digits is 392000, while the sum is 41.

The spelling of 27255400547 in words is "twenty-seven billion, two hundred fifty-five million, four hundred thousand, five hundred forty-seven".