2057563 has 4 divisors (see below), whose sum is σ = 2123968. Its totient is φ = 1991160.

The previous prime is 2057543. The next prime is 2057569. The reversal of 2057563 is 3657502.

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-2057563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2057569) 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, 33156 + ... + 33217.

It is an arithmetic number, because the mean of its divisors is an integer number (530992).

2^2057563 is an apocalyptic number.

2057563 is a deficient number, since it is larger than the sum of its proper divisors (66405).

2057563 is an equidigital number, since it uses as much as digits as its factorization.

2057563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66404.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 2057563 is about 1434.4207890295. The cubic root of 2057563 is about 127.1894376671.

The spelling of 2057563 in words is "two million, fifty-seven thousand, five hundred sixty-three".