2057999065 has 16 divisors (see below), whose sum is σ = 2583478800. Its totient is φ = 1571756032.

The previous prime is 2057999057. The next prime is 2057999093. The reversal of 2057999065 is 5609997502.

It can be written as a sum of positive squares in 8 ways, for example, as 476505241 + 1581493824 = 21829^2 + 39768^2 .

It is a cyclic number.

It is not a de Polignac number, because 2057999065 - 2³ = 2057999057 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 66832 + ... + 92641.

It is an arithmetic number, because the mean of its divisors is an integer number (161467425).

Almost surely, 2^2057999065 is an apocalyptic number.

It is an amenable number.

2057999065 is a deficient number, since it is larger than the sum of its proper divisors (525479735).

2057999065 is a wasteful number, since it uses less digits than its factorization.

2057999065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159596.

The product of its (nonzero) digits is 1530900, while the sum is 52.

The square root of 2057999065 is about 45365.1745835944. The cubic root of 2057999065 is about 1271.9842223512.

The spelling of 2057999065 in words is "two billion, fifty-seven million, nine hundred ninety-nine thousand, sixty-five".