52422320 has 40 divisors (see below), whose sum is σ = 122432640. Its totient is φ = 20874240.

The previous prime is 52422301. The next prime is 52422323. The reversal of 52422320 is 2322425.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 52422292 and 52422301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52422323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17921 + ... + 20639.

It is an arithmetic number, because the mean of its divisors is an integer number (3060816).

Almost surely, 2^52422320 is an apocalyptic number.

It is an amenable number.

52422320 is an abundant number, since it is smaller than the sum of its proper divisors (70010320).

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

52422320 is a wasteful number, since it uses less digits than its factorization.

52422320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973 (or 2967 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 52422320 is about 7240.3259595131. The cubic root of 52422320 is about 374.2588502311.

Adding to 52422320 its reverse (2322425), we get a palindrome (54744745).

The spelling of 52422320 in words is "fifty-two million, four hundred twenty-two thousand, three hundred twenty".