8520057 has 48 divisors (see below), whose sum is σ = 15445248. Its totient is φ = 4406400.

The previous prime is 8520041. The next prime is 8520079. The reversal of 8520057 is 7500258.

It is a happy number.

It is not a de Polignac number, because 8520057 - 2⁴ = 8520041 is a prime.

It is a super-3 number, since 3×8520057³ (a number of 22 digits) contains 333 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8520057.

It is not an unprimeable number, because it can be changed into a prime (8520007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82668 + ... + 82770.

It is an arithmetic number, because the mean of its divisors is an integer number (321776).

Almost surely, 2^8520057 is an apocalyptic number.

It is an amenable number.

8520057 is a deficient number, since it is larger than the sum of its proper divisors (6925191).

8520057 is a wasteful number, since it uses less digits than its factorization.

8520057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 8520057 is about 2918.9136677881. The cubic root of 8520057 is about 204.2431500944.

The spelling of 8520057 in words is "eight million, five hundred twenty thousand, fifty-seven".