2557271 has 4 divisors (see below), whose sum is σ = 2572752. Its totient is φ = 2541792.

The previous prime is 2557241. The next prime is 2557273. The reversal of 2557271 is 1727552.

2557271 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.

It is a cyclic number.

It is not a de Polignac number, because 2557271 - 2¹⁴ = 2540887 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 (2557273) 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 3 ways as a sum of consecutive naturals, for example, 7490 + ... + 7823.

It is an arithmetic number, because the mean of its divisors is an integer number (643188).

2^2557271 is an apocalyptic number.

2557271 is a deficient number, since it is larger than the sum of its proper divisors (15481).

2557271 is a wasteful number, since it uses less digits than its factorization.

2557271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15480.

The product of its digits is 4900, while the sum is 29.

The square root of 2557271 is about 1599.1469601009. The cubic root of 2557271 is about 136.7494488223.

The spelling of 2557271 in words is "two million, five hundred fifty-seven thousand, two hundred seventy-one".