2552161 has 4 divisors (see below), whose sum is σ = 2563632. Its totient is φ = 2540692.

The previous prime is 2552119. The next prime is 2552171. The reversal of 2552161 is 1612552.

2552161 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2552161 - 2¹⁵ = 2519393 is a prime.

It is a Smith number, since the sum of its digits (22) 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 (2552111) 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, 5395 + ... + 5848.

It is an arithmetic number, because the mean of its divisors is an integer number (640908).

2^2552161 is an apocalyptic number.

It is an amenable number.

2552161 is a deficient number, since it is larger than the sum of its proper divisors (11471).

2552161 is a wasteful number, since it uses less digits than its factorization.

2552161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11470.

The product of its digits is 600, while the sum is 22.

The square root of 2552161 is about 1597.5484343205. The cubic root of 2552161 is about 136.6583027468.

The spelling of 2552161 in words is "two million, five hundred fifty-two thousand, one hundred sixty-one".