5165221 has 8 divisors (see below), whose sum is σ = 5393304. Its totient is φ = 4942080.

The previous prime is 5165201. The next prime is 5165227. The reversal of 5165221 is 1225615.

It can be written as a sum of positive squares in 4 ways, for example, as 152100 + 5013121 = 390^2 + 2239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5165221 - 2¹³ = 5157029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5165192 and 5165201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5165227) 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 7 ways as a sum of consecutive naturals, for example, 985 + ... + 3361.

It is an arithmetic number, because the mean of its divisors is an integer number (674163).

Almost surely, 2^5165221 is an apocalyptic number.

It is an amenable number.

5165221 is a deficient number, since it is larger than the sum of its proper divisors (228083).

5165221 is a wasteful number, since it uses less digits than its factorization.

5165221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471.

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

The square root of 5165221 is about 2272.7122563140. The cubic root of 5165221 is about 172.8607140656.

The spelling of 5165221 in words is "five million, one hundred sixty-five thousand, two hundred twenty-one".