52528217 has 16 divisors (see below), whose sum is σ = 63605760. Its totient is φ = 42375312.

The previous prime is 52528213. The next prime is 52528237. The reversal of 52528217 is 71282525.

It is a happy number.

It is not a de Polignac number, because 52528217 - 2² = 52528213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52528213) 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, 20468 + ... + 22890.

It is an arithmetic number, because the mean of its divisors is an integer number (3975360).

Almost surely, 2^52528217 is an apocalyptic number.

It is an amenable number.

52528217 is a deficient number, since it is larger than the sum of its proper divisors (11077543).

52528217 is a wasteful number, since it uses less digits than its factorization.

52528217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612.

The product of its digits is 11200, while the sum is 32.

The square root of 52528217 is about 7247.6352695207. The cubic root of 52528217 is about 374.5106910008.

The spelling of 52528217 in words is "fifty-two million, five hundred twenty-eight thousand, two hundred seventeen".