2552805049 has 4 divisors (see below), whose sum is σ = 2600971236. Its totient is φ = 2504638864.

The previous prime is 2552805041. The next prime is 2552805083. The reversal of 2552805049 is 9405082552.

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 2195859600 + 356945449 = 46860^2 + 18893^2 .

It is a cyclic number.

It is not a de Polignac number, because 2552805049 - 2³ = 2552805041 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2552805041) 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, 24083014 + ... + 24083119.

It is an arithmetic number, because the mean of its divisors is an integer number (650242809).

Almost surely, 2^2552805049 is an apocalyptic number.

It is an amenable number.

2552805049 is a deficient number, since it is larger than the sum of its proper divisors (48166187).

2552805049 is an equidigital number, since it uses as much as digits as its factorization.

2552805049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48166186.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 2552805049 is about 50525.2911817438. The cubic root of 2552805049 is about 1366.6979722025.

The spelling of 2552805049 in words is "two billion, five hundred fifty-two million, eight hundred five thousand, forty-nine".