52016720 has 80 divisors (see below), whose sum is σ = 143026560. Its totient is φ = 17213952.

The previous prime is 52016711. The next prime is 52016743. The reversal of 52016720 is 2761025.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14639 + ... + 17841.

It is an arithmetic number, because the mean of its divisors is an integer number (1787832).

Almost surely, 2^52016720 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 52016720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71513280).

52016720 is an abundant number, since it is smaller than the sum of its proper divisors (91009840).

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

52016720 is a wasteful number, since it uses less digits than its factorization.

52016720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252 (or 3246 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 52016720 is about 7212.2617811613. The cubic root of 52016720 is about 373.2911162580.

Adding to 52016720 its reverse (2761025), we get a palindrome (54777745).

The spelling of 52016720 in words is "fifty-two million, sixteen thousand, seven hundred twenty".