52123320 has 96 divisors (see below), whose sum is σ = 172008720. Its totient is φ = 13685760.

The previous prime is 52123319. The next prime is 52123333. The reversal of 52123320 is 2332125.

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 = 52123293 and 52123302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23040 + ... + 25200.

Almost surely, 2^52123320 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 52123320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86004360).

52123320 is an abundant number, since it is smaller than the sum of its proper divisors (119885400).

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

52123320 is a wasteful number, since it uses less digits than its factorization.

52123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 52123320 is about 7219.6481908747. The cubic root of 52123320 is about 373.5459425322.

Adding to 52123320 its reverse (2332125), we get a palindrome (54455445).

The spelling of 52123320 in words is "fifty-two million, one hundred twenty-three thousand, three hundred twenty".