2642252563 has 4 divisors (see below), whose sum is σ = 2642952240. Its totient is φ = 2641552888.

The previous prime is 2642252531. The next prime is 2642252603. The reversal of 2642252563 is 3652522462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3652522462 = 2 ⋅1826261231.

It is a cyclic number.

It is not a de Polignac number, because 2642252563 - 2⁵ = 2642252531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642252363) 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, 344143 + ... + 351736.

It is an arithmetic number, because the mean of its divisors is an integer number (660738060).

Almost surely, 2^2642252563 is an apocalyptic number.

2642252563 is a deficient number, since it is larger than the sum of its proper divisors (699677).

2642252563 is an equidigital number, since it uses as much as digits as its factorization.

2642252563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699676.

The product of its digits is 172800, while the sum is 37.

The square root of 2642252563 is about 51402.8458647962. The cubic root of 2642252563 is about 1382.4776191976.

The spelling of 2642252563 in words is "two billion, six hundred forty-two million, two hundred fifty-two thousand, five hundred sixty-three".