2780083057 has 4 divisors (see below), whose sum is σ = 2875948020. Its totient is φ = 2684218096.

The previous prime is 2780083051. The next prime is 2780083079. The reversal of 2780083057 is 7503800872.

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 1972159281 + 807923776 = 44409^2 + 28424^2 .

It is a cyclic number.

It is not a de Polignac number, because 2780083057 - 2¹⁵ = 2780050289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2780083051) 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 3 ways as a sum of consecutive naturals, for example, 47932438 + ... + 47932495.

It is an arithmetic number, because the mean of its divisors is an integer number (718987005).

Almost surely, 2^2780083057 is an apocalyptic number.

It is an amenable number.

2780083057 is a deficient number, since it is larger than the sum of its proper divisors (95864963).

2780083057 is an equidigital number, since it uses as much as digits as its factorization.

2780083057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95864962.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 2780083057 is about 52726.4929328701. The cubic root of 2780083057 is about 1406.1098708712.

The spelling of 2780083057 in words is "two billion, seven hundred eighty million, eighty-three thousand, fifty-seven".