2552845 has 4 divisors (see below), whose sum is σ = 3063420. Its totient is φ = 2042272.

The previous prime is 2552843. The next prime is 2552857. The reversal of 2552845 is 5482552.

2552845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 470596 + 2082249 = 686^2 + 1443^2 .

It is a cyclic number.

It is not a de Polignac number, because 2552845 - 2¹ = 2552843 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2552843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255280 + ... + 255289.

It is an arithmetic number, because the mean of its divisors is an integer number (765855).

2^2552845 is an apocalyptic number.

It is an amenable number.

2552845 is a deficient number, since it is larger than the sum of its proper divisors (510575).

2552845 is an equidigital number, since it uses as much as digits as its factorization.

2552845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510574.

The product of its digits is 16000, while the sum is 31.

The square root of 2552845 is about 1597.7624979952. The cubic root of 2552845 is about 136.6705101702.

It can be divided in two parts, 25 and 52845, that multiplied together give a triangular number (1321125 = T₁₆₂₅).

The spelling of 2552845 in words is "two million, five hundred fifty-two thousand, eight hundred forty-five".