2005900859057 has 2 divisors, whose sum is σ = 2005900859058. Its totient is φ = 2005900859056.

The previous prime is 2005900859051. The next prime is 2005900859093. The reversal of 2005900859057 is 7509580095002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1989027888241 + 16872970816 = 1410329^2 + 129896^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005900859057 - 2²² = 2005896664753 is a prime.

It is a super-2 number, since 2×2005900859057² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2005900858996 and 2005900859014.

It is not a weakly prime, because it can be changed into another prime (2005900859051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002950429528 + 1002950429529.

It is an arithmetic number, because the mean of its divisors is an integer number (1002950429529).

Almost surely, 2^{2005900859057} is an apocalyptic number.

It is an amenable number.

2005900859057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005900859057 is an equidigital number, since it uses as much as digits as its factorization.

2005900859057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000, while the sum is 50.

The spelling of 2005900859057 in words is "two trillion, five billion, nine hundred million, eight hundred fifty-nine thousand, fifty-seven".