2054221633 has 4 divisors (see below), whose sum is σ = 2055496788. Its totient is φ = 2052946480.

The previous prime is 2054221627. The next prime is 2054221657. The reversal of 2054221633 is 3361224502.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1673464464 + 380757169 = 40908^2 + 19513^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054221633 - 2⁵ = 2054221601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2054221733) 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 3 ways as a sum of consecutive naturals, for example, 635158 + ... + 638383.

It is an arithmetic number, because the mean of its divisors is an integer number (513874197).

Almost surely, 2^2054221633 is an apocalyptic number.

It is an amenable number.

2054221633 is a deficient number, since it is larger than the sum of its proper divisors (1275155).

2054221633 is a wasteful number, since it uses less digits than its factorization.

2054221633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275154.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 2054221633 is about 45323.5218512419. The cubic root of 2054221633 is about 1271.2055085792.

The spelling of 2054221633 in words is "two billion, fifty-four million, two hundred twenty-one thousand, six hundred thirty-three".