52220385 has 24 divisors (see below), whose sum is σ = 103446720. Its totient is φ = 23872032.

The previous prime is 52220383. The next prime is 52220411. The reversal of 52220385 is 58302225.

52220385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52220385 - 2¹ = 52220383 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52220383) 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 23 ways as a sum of consecutive naturals, for example, 82575 + ... + 83204.

It is an arithmetic number, because the mean of its divisors is an integer number (4310280).

Almost surely, 2^52220385 is an apocalyptic number.

It is an amenable number.

52220385 is a deficient number, since it is larger than the sum of its proper divisors (51226335).

52220385 is a wasteful number, since it uses less digits than its factorization.

52220385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165797 (or 165794 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 52220385 is about 7226.3673446622. The cubic root of 52220385 is about 373.7776734430. Note that the first 3 decimals are identical.

The spelling of 52220385 in words is "fifty-two million, two hundred twenty thousand, three hundred eighty-five".