52017280 has 128 divisors (see below), whose sum is σ = 150698880. Its totient is φ = 16760832.

The previous prime is 52017253. The next prime is 52017281. The reversal of 52017280 is 8271025.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (52017281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75819 + ... + 76501.

It is an arithmetic number, because the mean of its divisors is an integer number (1177335).

Almost surely, 2^52017280 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 52017280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75349440).

52017280 is an abundant number, since it is smaller than the sum of its proper divisors (98681600).

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

52017280 is a wasteful number, since it uses less digits than its factorization.

52017280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 52017280 is about 7212.3006038295. The cubic root of 52017280 is about 373.2924558418.

The spelling of 52017280 in words is "fifty-two million, seventeen thousand, two hundred eighty".