52406720 has 28 divisors (see below), whose sum is σ = 124794264. Its totient is φ = 20962560.

The previous prime is 52406687. The next prime is 52406729. The reversal of 52406720 is 2760425.

52406720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×52406720³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52406720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52406729) 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 3 ways as a sum of consecutive naturals, for example, 81566 + ... + 82205.

It is an arithmetic number, because the mean of its divisors is an integer number (4456938).

Almost surely, 2^52406720 is an apocalyptic number.

It is an amenable number.

52406720 is an abundant number, since it is smaller than the sum of its proper divisors (72387544).

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

52406720 is a wasteful number, since it uses less digits than its factorization.

52406720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163788 (or 163778 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 52406720 is about 7239.2485797906. The cubic root of 52406720 is about 374.2217221700.

The spelling of 52406720 in words is "fifty-two million, four hundred six thousand, seven hundred twenty".