52809680 has 80 divisors (see below), whose sum is σ = 153097344. Its totient is φ = 16458240.

The previous prime is 52809649. The next prime is 52809697. The reversal of 52809680 is 8690825.

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

52809680 is a modest number, since divided by 9680 gives 5280 as remainder.

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, 1874 + ... + 10446.

Almost surely, 2^52809680 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 52809680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76548672).

52809680 is an abundant number, since it is smaller than the sum of its proper divisors (100287664).

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

52809680 is a wasteful number, since it uses less digits than its factorization.

52809680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8604 (or 8598 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 52809680 is about 7267.0269023859. The cubic root of 52809680 is about 375.1784158414.

The spelling of 52809680 in words is "fifty-two million, eight hundred nine thousand, six hundred eighty".