2546620563 has 4 divisors (see below), whose sum is σ = 3395494088. Its totient is φ = 1697747040.

The previous prime is 2546620507. The next prime is 2546620589. The reversal of 2546620563 is 3650266452.

2546620563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2546620563 - 2⁹ = 2546620051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2546620663) 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, 424436758 + ... + 424436763.

It is an arithmetic number, because the mean of its divisors is an integer number (848873522).

Almost surely, 2^2546620563 is an apocalyptic number.

2546620563 is a deficient number, since it is larger than the sum of its proper divisors (848873525).

2546620563 is an equidigital number, since it uses as much as digits as its factorization.

2546620563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848873524.

The product of its (nonzero) digits is 259200, while the sum is 39.

The square root of 2546620563 is about 50464.0521856896. The cubic root of 2546620563 is about 1365.5934147823.

The spelling of 2546620563 in words is "two billion, five hundred forty-six million, six hundred twenty thousand, five hundred sixty-three".