53206530 has 64 divisors (see below), whose sum is σ = 138354048. Its totient is φ = 13017600.

The previous prime is 53206501. The next prime is 53206577. The reversal of 53206530 is 3560235.

53206530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 53206530.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 88230 + ... + 88830.

It is an arithmetic number, because the mean of its divisors is an integer number (2161782).

Almost surely, 2^53206530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53206530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69177024).

53206530 is an abundant number, since it is smaller than the sum of its proper divisors (85147518).

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

53206530 is a wasteful number, since it uses less digits than its factorization.

53206530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 53206530 is about 7294.2806362245. The cubic root of 53206530 is about 376.1158585547.

Adding to 53206530 its reverse (3560235), we get a palindrome (56766765).

The spelling of 53206530 in words is "fifty-three million, two hundred six thousand, five hundred thirty".