52857810 has 48 divisors (see below), whose sum is σ = 144668160. Its totient is φ = 13353120.

The previous prime is 52857809. The next prime is 52857817. The reversal of 52857810 is 1875825.

52857810 is a `hidden beast` number, since 528 + 57 + 81 + 0 = 666.

52857810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×52857810² = 5587896155992200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52857817) 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 23 ways as a sum of consecutive naturals, for example, 13746 + ... + 17165.

It is an arithmetic number, because the mean of its divisors is an integer number (3013920).

Almost surely, 2^52857810 is an apocalyptic number.

52857810 is an abundant number, since it is smaller than the sum of its proper divisors (91810350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52857810 is a wasteful number, since it uses less digits than its factorization.

52857810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30943 (or 30940 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 52857810 is about 7270.3376812910. The cubic root of 52857810 is about 375.2923586778.

The spelling of 52857810 in words is "fifty-two million, eight hundred fifty-seven thousand, eight hundred ten".