52620520 has 32 divisors (see below), whose sum is σ = 120634920. Its totient is φ = 20650240.

The previous prime is 52620509. The next prime is 52620521. The reversal of 52620520 is 2502625.

52620520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 37920964 + 14699556 = 6158^2 + 3834^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52620491 and 52620500.

It is not an unprimeable number, because it can be changed into a prime (52620521) 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, 10291 + ... + 14530.

Almost surely, 2^52620520 is an apocalyptic number.

It is an amenable number.

52620520 is an abundant number, since it is smaller than the sum of its proper divisors (68014400).

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

52620520 is a wasteful number, since it uses less digits than its factorization.

52620520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24885 (or 24881 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 52620520 is about 7254.0002757099. Note that the first 3 decimals coincide. The cubic root of 52620520 is about 374.7299270231.

The spelling of 52620520 in words is "fifty-two million, six hundred twenty thousand, five hundred twenty".