52112320 has 56 divisors (see below), whose sum is σ = 133648704. Its totient is φ = 19239936.

The previous prime is 52112311. The next prime is 52112339. The reversal of 52112320 is 2321125.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 52112294 and 52112303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2104 + ... + 10423.

It is an arithmetic number, because the mean of its divisors is an integer number (2386584).

Almost surely, 2^52112320 is an apocalyptic number.

It is an amenable number.

52112320 is an abundant number, since it is smaller than the sum of its proper divisors (81536384).

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

52112320 is a wasteful number, since it uses less digits than its factorization.

52112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12557 (or 12547 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 52112320 is about 7218.8863407038. The cubic root of 52112320 is about 373.5196632235.

Adding to 52112320 its reverse (2321125), we get a palindrome (54433445).

The spelling of 52112320 in words is "fifty-two million, one hundred twelve thousand, three hundred twenty".