52122420 has 96 divisors (see below), whose sum is σ = 185337600. Its totient is φ = 11912832.

The previous prime is 52122401. The next prime is 52122431. The reversal of 52122420 is 2422125.

52122420 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 (18).

It is a junction number, because it is equal to n+sod(n) for n = 52122393 and 52122402.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3115 + ... + 10674.

It is an arithmetic number, because the mean of its divisors is an integer number (1930600).

Almost surely, 2^52122420 is an apocalyptic number.

It is an amenable number.

52122420 is an abundant number, since it is smaller than the sum of its proper divisors (133215180).

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

52122420 is a wasteful number, since it uses less digits than its factorization.

52122420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13814 (or 13806 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 52122420 is about 7219.5858606987. The cubic root of 52122420 is about 373.5437925458.

Adding to 52122420 its reverse (2422125), we get a palindrome (54544545).

The spelling of 52122420 in words is "fifty-two million, one hundred twenty-two thousand, four hundred twenty".