27456857053 has 4 divisors (see below), whose sum is σ = 27526018300. Its totient is φ = 27387695808.

The previous prime is 27456856967. The next prime is 27456857059. The reversal of 27456857053 is 35075865472.

It is a happy number.

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 23019565284 + 4437291769 = 151722^2 + 66613^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27456857053 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 (27456857059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34580028 + ... + 34580821.

It is an arithmetic number, because the mean of its divisors is an integer number (6881504575).

Almost surely, 2^27456857053 is an apocalyptic number.

It is an amenable number.

27456857053 is a deficient number, since it is larger than the sum of its proper divisors (69161247).

27456857053 is an equidigital number, since it uses as much as digits as its factorization.

27456857053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69161246.

The product of its (nonzero) digits is 7056000, while the sum is 52.

The spelling of 27456857053 in words is "twenty-seven billion, four hundred fifty-six million, eight hundred fifty-seven thousand, fifty-three".