2520563 has 4 divisors (see below), whose sum is σ = 2574240. Its totient is φ = 2466888.

The previous prime is 2520503. The next prime is 2520577. The reversal of 2520563 is 3650252.

It is a happy number.

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 2520563 - 2¹² = 2516467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520503) 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, 26768 + ... + 26861.

It is an arithmetic number, because the mean of its divisors is an integer number (643560).

2^2520563 is an apocalyptic number.

2520563 is a deficient number, since it is larger than the sum of its proper divisors (53677).

2520563 is an equidigital number, since it uses as much as digits as its factorization.

2520563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53676.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2520563 is about 1587.6281050674. The cubic root of 2520563 is about 136.0919757017.

The spelling of 2520563 in words is "two million, five hundred twenty thousand, five hundred sixty-three".