52820980 has 48 divisors (see below), whose sum is σ = 113783040. Its totient is φ = 20592000.

The previous prime is 52820939. The next prime is 52820981. The reversal of 52820980 is 8902825.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52820981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159415 + ... + 159745.

It is an arithmetic number, because the mean of its divisors is an integer number (2370480).

Almost surely, 2^52820980 is an apocalyptic number.

It is an amenable number.

52820980 is an abundant number, since it is smaller than the sum of its proper divisors (60962060).

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

52820980 is a wasteful number, since it uses less digits than its factorization.

52820980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 52820980 is about 7267.8043451926. The cubic root of 52820980 is about 375.2051736488.

The spelling of 52820980 in words is "fifty-two million, eight hundred twenty thousand, nine hundred eighty".