2547271257 has 4 divisors (see below), whose sum is σ = 3396361680. Its totient is φ = 1698180836.

The previous prime is 2547271219. The next prime is 2547271261. The reversal of 2547271257 is 7521727452.

It is a happy number.

2547271257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2547271257 - 2¹⁵ = 2547238489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2547271297) 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, 424545207 + ... + 424545212.

It is an arithmetic number, because the mean of its divisors is an integer number (849090420).

Almost surely, 2^2547271257 is an apocalyptic number.

It is an amenable number.

2547271257 is a deficient number, since it is larger than the sum of its proper divisors (849090423).

2547271257 is an equidigital number, since it uses as much as digits as its factorization.

2547271257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849090422.

The product of its digits is 274400, while the sum is 42.

The square root of 2547271257 is about 50470.4988780575. The cubic root of 2547271257 is about 1365.7097137163.

The spelling of 2547271257 in words is "two billion, five hundred forty-seven million, two hundred seventy-one thousand, two hundred fifty-seven".