2005670519 has 4 divisors (see below), whose sum is σ = 2070369600. Its totient is φ = 1940971440.

The previous prime is 2005670497. The next prime is 2005670521. The reversal of 2005670519 is 9150765002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9150765002 = 2 ⋅4575382501.

It is a cyclic number.

It is not a de Polignac number, because 2005670519 - 2²⁴ = 1988893303 is a prime.

It is a super-2 number, since 2×2005670519² = 8045428461571458722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005670549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32349494 + ... + 32349555.

It is an arithmetic number, because the mean of its divisors is an integer number (517592400).

Almost surely, 2^2005670519 is an apocalyptic number.

2005670519 is a deficient number, since it is larger than the sum of its proper divisors (64699081).

2005670519 is an equidigital number, since it uses as much as digits as its factorization.

2005670519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64699080.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 2005670519 is about 44784.7130056675. The cubic root of 2005670519 is about 1261.1106606925.

The spelling of 2005670519 in words is "two billion, five million, six hundred seventy thousand, five hundred nineteen".