2553849 has 20 divisors (see below), whose sum is σ = 3913140. Its totient is φ = 1658880.

The previous prime is 2553829. The next prime is 2553853. The reversal of 2553849 is 9483552.

It can be written as a sum of positive squares in 2 ways, for example, as 480249 + 2073600 = 693^2 + 1440^2 .

It is not a de Polignac number, because 2553849 - 2⁹ = 2553337 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553829) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2937 + ... + 3705.

It is an arithmetic number, because the mean of its divisors is an integer number (195657).

2^2553849 is an apocalyptic number.

It is an amenable number.

2553849 is a deficient number, since it is larger than the sum of its proper divisors (1359291).

2553849 is an equidigital number, since it uses as much as digits as its factorization.

2553849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 813 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 2553849 is about 1598.0766564843. The cubic root of 2553849 is about 136.6884247201.

The spelling of 2553849 in words is "two million, five hundred fifty-three thousand, eight hundred forty-nine".