52842820 has 12 divisors (see below), whose sum is σ = 110969964. Its totient is φ = 21137120.

The previous prime is 52842767. The next prime is 52842827. The reversal of 52842820 is 2824825.

It can be written as a sum of positive squares in 2 ways, for example, as 29571844 + 23270976 = 5438^2 + 4824^2 .

It is not an unprimeable number, because it can be changed into a prime (52842827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321051 + ... + 1321090.

It is an arithmetic number, because the mean of its divisors is an integer number (9247497).

Almost surely, 2^52842820 is an apocalyptic number.

It is an amenable number.

52842820 is an abundant number, since it is smaller than the sum of its proper divisors (58127144).

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

52842820 is a wasteful number, since it uses less digits than its factorization.

52842820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642150 (or 2642148 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 52842820 is about 7269.3067069701. The cubic root of 52842820 is about 375.2568788100.

The spelling of 52842820 in words is "fifty-two million, eight hundred forty-two thousand, eight hundred twenty".