52530270 has 64 divisors (see below), whose sum is σ = 136745280. Its totient is φ = 12914304.

The previous prime is 52530263. The next prime is 52530311. The reversal of 52530270 is 7203525.

It is a self number, because there is not a number n which added to its sum of digits gives 52530270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65512 + ... + 66308.

It is an arithmetic number, because the mean of its divisors is an integer number (2136645).

Almost surely, 2^52530270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52530270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68372640).

52530270 is an abundant number, since it is smaller than the sum of its proper divisors (84215010).

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

52530270 is a wasteful number, since it uses less digits than its factorization.

52530270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 52530270 is about 7247.7769005399. The cubic root of 52530270 is about 374.5155700320.

Adding to 52530270 its reverse (7203525), we get a palindrome (59733795).

The spelling of 52530270 in words is "fifty-two million, five hundred thirty thousand, two hundred seventy".