5317221 has 16 divisors (see below), whose sum is σ = 8726144. Its totient is φ = 2804544.

The previous prime is 5317217. The next prime is 5317231. The reversal of 5317221 is 1227135.

It is not a de Polignac number, because 5317221 - 2² = 5317217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5317211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9466 + ... + 10011.

It is an arithmetic number, because the mean of its divisors is an integer number (545384).

Almost surely, 2^5317221 is an apocalyptic number.

It is an amenable number.

5317221 is a deficient number, since it is larger than the sum of its proper divisors (3408923).

5317221 is a wasteful number, since it uses less digits than its factorization.

5317221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19500.

The product of its digits is 420, while the sum is 21.

The square root of 5317221 is about 2305.9100155904. The cubic root of 5317221 is about 174.5399727258.

The spelling of 5317221 in words is "five million, three hundred seventeen thousand, two hundred twenty-one".