5311521 has 16 divisors (see below), whose sum is σ = 7936000. Its totient is φ = 3510864.

The previous prime is 5311511. The next prime is 5311543. The reversal of 5311521 is 1251135.

It is not a de Polignac number, because 5311521 - 2¹⁰ = 5310497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5311494 and 5311503.

It is not an unprimeable number, because it can be changed into a prime (5311511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2655 + ... + 4203.

It is an arithmetic number, because the mean of its divisors is an integer number (496000).

Almost surely, 2^5311521 is an apocalyptic number.

It is an amenable number.

5311521 is a deficient number, since it is larger than the sum of its proper divisors (2624479).

5311521 is a wasteful number, since it uses less digits than its factorization.

5311521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685 (or 1679 counting only the distinct ones).

The product of its digits is 150, while the sum is 18.

The square root of 5311521 is about 2304.6737296199. The cubic root of 5311521 is about 174.4775821427.

Adding to 5311521 its reverse (1251135), we get a palindrome (6562656).

It can be divided in two parts, 5311 and 521, that added together give a cube (5832 = 18³).

The spelling of 5311521 in words is "five million, three hundred eleven thousand, five hundred twenty-one".