2006050521857 has 2 divisors, whose sum is σ = 2006050521858. Its totient is φ = 2006050521856.

The previous prime is 2006050521817. The next prime is 2006050521889. The reversal of 2006050521857 is 7581250506002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1278891836161 + 727158685696 = 1130881^2 + 852736^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006050521857 - 2⁶ = 2006050521793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2006050521817) 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 as a sum of consecutive naturals, namely, 1003025260928 + 1003025260929.

It is an arithmetic number, because the mean of its divisors is an integer number (1003025260929).

Almost surely, 2^{2006050521857} is an apocalyptic number.

It is an amenable number.

2006050521857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006050521857 is an equidigital number, since it uses as much as digits as its factorization.

2006050521857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 2006050521857 in words is "two trillion, six billion, fifty million, five hundred twenty-one thousand, eight hundred fifty-seven".