2053995921 has 16 divisors (see below), whose sum is σ = 3113725120. Its totient is φ = 1337484960.

The previous prime is 2053995899. The next prime is 2053995929. The reversal of 2053995921 is 1295993502.

2053995921 is a `hidden beast` number, since 2 + 0 + 53 + 9 + 9 + 592 + 1 = 666.

It is not a de Polignac number, because 2053995921 - 2⁶ = 2053995857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2053995929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 883420 + ... + 885741.

It is an arithmetic number, because the mean of its divisors is an integer number (194607820).

Almost surely, 2^2053995921 is an apocalyptic number.

It is an amenable number.

2053995921 is a deficient number, since it is larger than the sum of its proper divisors (1059729199).

2053995921 is a wasteful number, since it uses less digits than its factorization.

2053995921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769213 (or 1769207 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 2053995921 is about 45321.0317733390. The cubic root of 2053995921 is about 1271.1589480649.

The spelling of 2053995921 in words is "two billion, fifty-three million, nine hundred ninety-five thousand, nine hundred twenty-one".