5175521 has 4 divisors (see below), whose sum is σ = 5573652. Its totient is φ = 4777392.

The previous prime is 5175517. The next prime is 5175551. The reversal of 5175521 is 1255715.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1255715 = 5 ⋅251143.

It can be written as a sum of positive squares in 2 ways, for example, as 2958400 + 2217121 = 1720^2 + 1489^2 .

It is a cyclic number.

It is not a de Polignac number, because 5175521 - 2² = 5175517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5175551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199046 + ... + 199071.

It is an arithmetic number, because the mean of its divisors is an integer number (1393413).

Almost surely, 2^5175521 is an apocalyptic number.

It is an amenable number.

5175521 is a deficient number, since it is larger than the sum of its proper divisors (398131).

5175521 is a wasteful number, since it uses less digits than its factorization.

5175521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398130.

The product of its digits is 1750, while the sum is 26.

The square root of 5175521 is about 2274.9771427423. The cubic root of 5175521 is about 172.9755386578.

The spelling of 5175521 in words is "five million, one hundred seventy-five thousand, five hundred twenty-one".