52720680 has 32 divisors (see below), whose sum is σ = 158162400. Its totient is φ = 14058816.

The previous prime is 52720667. The next prime is 52720697. The reversal of 52720680 is 8602725.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 219550 + ... + 219789.

It is an arithmetic number, because the mean of its divisors is an integer number (4942575).

Almost surely, 2^52720680 is an apocalyptic number.

It is an amenable number.

52720680 is an abundant number, since it is smaller than the sum of its proper divisors (105441720).

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

52720680 is a wasteful number, since it uses less digits than its factorization.

52720680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439353 (or 439349 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 52720680 is about 7260.9007705656. The cubic root of 52720680 is about 374.9675349672.

The spelling of 52720680 in words is "fifty-two million, seven hundred twenty thousand, six hundred eighty".