52808080 has 40 divisors (see below), whose sum is σ = 132225912. Its totient is φ = 19497984.

The previous prime is 52808057. The next prime is 52808089. The reversal of 52808080 is 8080825.

It can be written as a sum of positive squares in 4 ways, for example, as 5308416 + 47499664 = 2304^2 + 6892^2 .

It is a tau number, because it is divible by the number of its divisors (40).

52808080 is a modest number, since divided by 8080 gives 5280 as remainder.

It is not an unprimeable number, because it can be changed into a prime (52808089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24349 + ... + 26428.

Almost surely, 2^52808080 is an apocalyptic number.

It is an amenable number.

52808080 is an abundant number, since it is smaller than the sum of its proper divisors (79417832).

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

52808080 is a wasteful number, since it uses less digits than its factorization.

52808080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50803 (or 50797 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 52808080 is about 7266.9168152663. The cubic root of 52808080 is about 375.1746268168.

The spelling of 52808080 in words is "fifty-two million, eight hundred eight thousand, eighty".