2852257821 has 16 divisors (see below), whose sum is σ = 4380524544. Its totient is φ = 1617026544.

The previous prime is 2852257757. The next prime is 2852257829. The reversal of 2852257821 is 1287522582.

It is not a de Polignac number, because 2852257821 - 2⁶ = 2852257757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2852257829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532065 + ... + 537398.

It is an arithmetic number, because the mean of its divisors is an integer number (273782784).

Almost surely, 2^2852257821 is an apocalyptic number.

2852257821 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2852257821 is a deficient number, since it is larger than the sum of its proper divisors (1528266723).

2852257821 is a wasteful number, since it uses less digits than its factorization.

2852257821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069600.

The product of its digits is 179200, while the sum is 42.

The square root of 2852257821 is about 53406.5335048063. The cubic root of 2852257821 is about 1418.1742423528.

The spelling of 2852257821 in words is "two billion, eight hundred fifty-two million, two hundred fifty-seven thousand, eight hundred twenty-one".