8512521 has 8 divisors (see below), whose sum is σ = 11394240. Its totient is φ = 5652912.

The previous prime is 8512453. The next prime is 8512523. The reversal of 8512521 is 1252158.

8512521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8512521 - 2¹⁰ = 8511497 is a prime.

8512521 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8512491 and 8512500.

It is not an unprimeable number, because it can be changed into a prime (8512523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4606 + ... + 6183.

It is an arithmetic number, because the mean of its divisors is an integer number (1424280).

Almost surely, 2^8512521 is an apocalyptic number.

It is an amenable number.

8512521 is a deficient number, since it is larger than the sum of its proper divisors (2881719).

8512521 is a wasteful number, since it uses less digits than its factorization.

8512521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11055.

The product of its digits is 800, while the sum is 24.

The square root of 8512521 is about 2917.6224910019. The cubic root of 8512521 is about 204.1829145661.

Adding to 8512521 its reverse (1252158), we get a palindrome (9764679).

The spelling of 8512521 in words is "eight million, five hundred twelve thousand, five hundred twenty-one".