5182821 has 12 divisors (see below), whose sum is σ = 8555872. Its totient is φ = 2961576.

The previous prime is 5182819. The next prime is 5182829. The reversal of 5182821 is 1282815.

It is not a de Polignac number, because 5182821 - 2¹ = 5182819 is a prime.

It is a Duffinian 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 (5182829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41071 + ... + 41196.

Almost surely, 2^5182821 is an apocalyptic number.

It is an amenable number.

5182821 is a deficient number, since it is larger than the sum of its proper divisors (3373051).

5182821 is a wasteful number, since it uses less digits than its factorization.

5182821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82280 (or 82277 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 5182821 is about 2276.5809891150. The cubic root of 5182821 is about 173.0568269773.

It can be divided in two parts, 51 and 82821, that multiplied together give a triangular number (4223871 = T₂₉₀₆).

The spelling of 5182821 in words is "five million, one hundred eighty-two thousand, eight hundred twenty-one".