52422520 has 64 divisors (see below), whose sum is σ = 129600000. Its totient is φ = 18995328.

The previous prime is 52422481. The next prime is 52422523. The reversal of 52422520 is 2522425.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 52422491 and 52422500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52422523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15981 + ... + 18979.

It is an arithmetic number, because the mean of its divisors is an integer number (2025000).

Almost surely, 2^52422520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52422520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64800000).

52422520 is an abundant number, since it is smaller than the sum of its proper divisors (77177480).

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

52422520 is a wasteful number, since it uses less digits than its factorization.

52422520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052 (or 3048 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 52422520 is about 7240.3397710328. The cubic root of 52422520 is about 374.2593261841.

Adding to 52422520 its reverse (2522425), we get a palindrome (54944945).

The spelling of 52422520 in words is "fifty-two million, four hundred twenty-two thousand, five hundred twenty".