52560640 has 72 divisors (see below), whose sum is σ = 137381328. Its totient is φ = 19107840.

The previous prime is 52560637. The next prime is 52560659. The reversal of 52560640 is 4606525.

It is a junction number, because it is equal to n+sod(n) for n = 52560599 and 52560608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12214 + ... + 15946.

It is an arithmetic number, because the mean of its divisors is an integer number (1908074).

Almost surely, 2^52560640 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 52560640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68690664).

52560640 is an abundant number, since it is smaller than the sum of its proper divisors (84820688).

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

52560640 is a wasteful number, since it uses less digits than its factorization.

52560640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765 (or 3751 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 52560640 is about 7249.8717230031. The cubic root of 52560640 is about 374.5877306270.

The spelling of 52560640 in words is "fifty-two million, five hundred sixty thousand, six hundred forty".