52109568 has 180 divisors, whose sum is σ = 178073280. Its totient is φ = 14846976.

The previous prime is 52109537. The next prime is 52109581. The reversal of 52109568 is 86590125.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 144973 + ... + 145331.

It is an arithmetic number, because the mean of its divisors is an integer number (989296).

Almost surely, 2^52109568 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 52109568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89036640).

52109568 is an abundant number, since it is smaller than the sum of its proper divisors (125963712).

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

52109568 is an equidigital number, since it uses as much as digits as its factorization.

52109568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 52109568 is about 7218.6957270687. The cubic root of 52109568 is about 373.5130880399.

The spelling of 52109568 in words is "fifty-two million, one hundred nine thousand, five hundred sixty-eight".