52808538 has 16 divisors (see below), whose sum is σ = 106587360. Its totient is φ = 17441136.

The previous prime is 52808537. The next prime is 52808549. The reversal of 52808538 is 83580825.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52808496 and 52808505.

It is not an unprimeable number, because it can be changed into a prime (52808537) 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, 39720 + ... + 41027.

It is an arithmetic number, because the mean of its divisors is an integer number (6661710).

Almost surely, 2^52808538 is an apocalyptic number.

52808538 is an abundant number, since it is smaller than the sum of its proper divisors (53778822).

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

52808538 is a wasteful number, since it uses less digits than its factorization.

52808538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80861.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 52808538 is about 7266.9483278746. The cubic root of 52808538 is about 375.1757114329.

The spelling of 52808538 in words is "fifty-two million, eight hundred eight thousand, five hundred thirty-eight".