2785276085 has 4 divisors (see below), whose sum is σ = 3342331308. Its totient is φ = 2228220864.

The previous prime is 2785276079. The next prime is 2785276133. The reversal of 2785276085 is 5806725872.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 354983281 + 2430292804 = 18841^2 + 49298^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2785276085 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278527604 + ... + 278527613.

It is an arithmetic number, because the mean of its divisors is an integer number (835582827).

Almost surely, 2^2785276085 is an apocalyptic number.

It is an amenable number.

2785276085 is a deficient number, since it is larger than the sum of its proper divisors (557055223).

2785276085 is an equidigital number, since it uses as much as digits as its factorization.

2785276085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557055222.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The square root of 2785276085 is about 52775.7149169957. The cubic root of 2785276085 is about 1406.9848358689.

The spelling of 2785276085 in words is "two billion, seven hundred eighty-five million, two hundred seventy-six thousand, eighty-five".