2065517506 has 16 divisors (see below), whose sum is σ = 3350935224. Its totient is φ = 949221504.

The previous prime is 2065517501. The next prime is 2065517521. The reversal of 2065517506 is 6057155602.

It can be written as a sum of positive squares in 4 ways, for example, as 644906025 + 1420611481 = 25395^2 + 37691^2 .

It is not an unprimeable number, because it can be changed into a prime (2065517501) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 164421 + ... + 176536.

Almost surely, 2^2065517506 is an apocalyptic number.

2065517506 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2065517506 is a deficient number, since it is larger than the sum of its proper divisors (1285417718).

2065517506 is a wasteful number, since it uses less digits than its factorization.

2065517506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341205.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 2065517506 is about 45447.9648169200. The cubic root of 2065517506 is about 1273.5313102044.

The spelling of 2065517506 in words is "two billion, sixty-five million, five hundred seventeen thousand, five hundred six".