2563271 has 4 divisors (see below), whose sum is σ = 2698200. Its totient is φ = 2428344.

The previous prime is 2563261. The next prime is 2563291. The reversal of 2563271 is 1723652.

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 2563271 - 2⁶ = 2563207 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2563271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563261) 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, 67436 + ... + 67473.

It is an arithmetic number, because the mean of its divisors is an integer number (674550).

2^2563271 is an apocalyptic number.

2563271 is a deficient number, since it is larger than the sum of its proper divisors (134929).

2563271 is a wasteful number, since it uses less digits than its factorization.

2563271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134928.

The product of its digits is 2520, while the sum is 26.

The square root of 2563271 is about 1601.0218611874. The cubic root of 2563271 is about 136.8563148044.

The spelling of 2563271 in words is "two million, five hundred sixty-three thousand, two hundred seventy-one".