2782573265 has 4 divisors (see below), whose sum is σ = 3339087924. Its totient is φ = 2226058608.

The previous prime is 2782573249. The next prime is 2782573279. The reversal of 2782573265 is 5623752872.

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 1748243344 + 1034329921 = 41812^2 + 32161^2 .

It is a cyclic number.

It is not a de Polignac number, because 2782573265 - 2⁴ = 2782573249 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 278257322 + ... + 278257331.

It is an arithmetic number, because the mean of its divisors is an integer number (834771981).

Almost surely, 2^2782573265 is an apocalyptic number.

It is an amenable number.

2782573265 is a deficient number, since it is larger than the sum of its proper divisors (556514659).

2782573265 is an equidigital number, since it uses as much as digits as its factorization.

2782573265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556514658.

The product of its digits is 1411200, while the sum is 47.

The square root of 2782573265 is about 52750.1020378160. The cubic root of 2782573265 is about 1406.5295778881.

The spelling of 2782573265 in words is "two billion, seven hundred eighty-two million, five hundred seventy-three thousand, two hundred sixty-five".