2162551 has 4 divisors (see below), whose sum is σ = 2167704. Its totient is φ = 2157400.

The previous prime is 2162549. The next prime is 2162557. The reversal of 2162551 is 1552612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2162551 - 2¹ = 2162549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162557) 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, 1885 + ... + 2806.

It is an arithmetic number, because the mean of its divisors is an integer number (541926).

2^2162551 is an apocalyptic number.

2162551 is a deficient number, since it is larger than the sum of its proper divisors (5153).

2162551 is an equidigital number, since it uses as much as digits as its factorization.

2162551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5152.

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

The square root of 2162551 is about 1470.5614574033. The cubic root of 2162551 is about 129.3169499269.

The spelling of 2162551 in words is "two million, one hundred sixty-two thousand, five hundred fifty-one".