2052042561 has 6 divisors (see below), whose sum is σ = 2964061490. Its totient is φ = 1368028368.

The previous prime is 2052042547. The next prime is 2052042593. The reversal of 2052042561 is 1652402502.

2052042561 is a `hidden beast` number, since 205 + 204 + 256 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1092963600 + 959078961 = 33060^2 + 30969^2 .

It is not a de Polignac number, because 2052042561 - 2¹¹ = 2052040513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2052042521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114002356 + ... + 114002373.

Almost surely, 2^2052042561 is an apocalyptic number.

It is an amenable number.

2052042561 is a deficient number, since it is larger than the sum of its proper divisors (912018929).

2052042561 is a wasteful number, since it uses less digits than its factorization.

2052042561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228004735 (or 228004732 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2052042561 is about 45299.4763877023. The cubic root of 2052042561 is about 1270.7558608340.

The spelling of 2052042561 in words is "two billion, fifty-two million, forty-two thousand, five hundred sixty-one".