52720860 has 24 divisors (see below), whose sum is σ = 147618576. Its totient is φ = 14058880.

The previous prime is 52720831. The next prime is 52720867. The reversal of 52720860 is 6802725.

52720860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52720867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439281 + ... + 439400.

It is an arithmetic number, because the mean of its divisors is an integer number (6150774).

Almost surely, 2^52720860 is an apocalyptic number.

It is an amenable number.

52720860 is an abundant number, since it is smaller than the sum of its proper divisors (94897716).

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

52720860 is a wasteful number, since it uses less digits than its factorization.

52720860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878693 (or 878691 counting only the distinct ones).

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

The square root of 52720860 is about 7260.9131657113. The cubic root of 52720860 is about 374.9679617073.

The spelling of 52720860 in words is "fifty-two million, seven hundred twenty thousand, eight hundred sixty".