2521422563 has 6 divisors (see below), whose sum is σ = 2771481132. Its totient is φ = 2292202220.

The previous prime is 2521422557. The next prime is 2521422571. The reversal of 2521422563 is 3652241252.

It is not a de Polignac number, because 2521422563 - 2¹⁸ = 2521160419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2521472563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10418981 + ... + 10419222.

It is an arithmetic number, because the mean of its divisors is an integer number (461913522).

Almost surely, 2^2521422563 is an apocalyptic number.

2521422563 is a deficient number, since it is larger than the sum of its proper divisors (250058569).

2521422563 is a wasteful number, since it uses less digits than its factorization.

2521422563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20838225 (or 20838214 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 2521422563 is about 50213.7686596017. The cubic root of 2521422563 is about 1361.0744398288.

The spelling of 2521422563 in words is "two billion, five hundred twenty-one million, four hundred twenty-two thousand, five hundred sixty-three".