52020280 has 64 divisors (see below), whose sum is σ = 127915200. Its totient is φ = 18923520.

The previous prime is 52020259. The next prime is 52020281. The reversal of 52020280 is 8202025.

It is a super-2 number, since 2×52020280² = 5412219062556800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52020281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36216 + ... + 37624.

It is an arithmetic number, because the mean of its divisors is an integer number (1998675).

Almost surely, 2^52020280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52020280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63957600).

52020280 is an abundant number, since it is smaller than the sum of its proper divisors (75894920).

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

52020280 is a wasteful number, since it uses less digits than its factorization.

52020280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 52020280 is about 7212.5085788511. The cubic root of 52020280 is about 373.2996320202.

The spelling of 52020280 in words is "fifty-two million, twenty thousand, two hundred eighty".