52020081 has 12 divisors (see below), whose sum is σ = 79095120. Its totient is φ = 32854680.

The previous prime is 52020079. The next prime is 52020097. The reversal of 52020081 is 18002025.

52020081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52020081 - 2¹ = 52020079 is a prime.

It is a super-3 number, since 3×52020081³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (52020061) 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 11 ways as a sum of consecutive naturals, for example, 151935 + ... + 152276.

It is an arithmetic number, because the mean of its divisors is an integer number (6591260).

Almost surely, 2^52020081 is an apocalyptic number.

It is an amenable number.

52020081 is a deficient number, since it is larger than the sum of its proper divisors (27075039).

52020081 is a wasteful number, since it uses less digits than its factorization.

52020081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304236 (or 304233 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 52020081 is about 7212.4947833603. The cubic root of 52020081 is about 373.2991560089.

The spelling of 52020081 in words is "fifty-two million, twenty thousand, eighty-one".