2063522591 has 4 divisors (see below), whose sum is σ = 2222255112. Its totient is φ = 1904790072.

The previous prime is 2063522567. The next prime is 2063522603. The reversal of 2063522591 is 1952253602.

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 2063522591 - 2²² = 2059328287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2063522501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79366241 + ... + 79366266.

It is an arithmetic number, because the mean of its divisors is an integer number (555563778).

Almost surely, 2^2063522591 is an apocalyptic number.

2063522591 is a deficient number, since it is larger than the sum of its proper divisors (158732521).

2063522591 is a wasteful number, since it uses less digits than its factorization.

2063522591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158732520.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2063522591 is about 45426.0122727056. The cubic root of 2063522591 is about 1273.1211781090.

The spelling of 2063522591 in words is "two billion, sixty-three million, five hundred twenty-two thousand, five hundred ninety-one".