2802563 has 4 divisors (see below), whose sum is σ = 2862240. Its totient is φ = 2742888.

The previous prime is 2802551. The next prime is 2802571. The reversal of 2802563 is 3652082.

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 2802563 - 2¹⁶ = 2737027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2802593) 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, 29768 + ... + 29861.

It is an arithmetic number, because the mean of its divisors is an integer number (715560).

2^2802563 is an apocalyptic number.

2802563 is a deficient number, since it is larger than the sum of its proper divisors (59677).

2802563 is an equidigital number, since it uses as much as digits as its factorization.

2802563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59676.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2802563 is about 1674.0857206248. The cubic root of 2802563 is about 140.9889668278.

The spelling of 2802563 in words is "two million, eight hundred two thousand, five hundred sixty-three".