52130320 has 40 divisors (see below), whose sum is σ = 132223680. Its totient is φ = 18956160.

The previous prime is 52130303. The next prime is 52130329. The reversal of 52130320 is 2303125.

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 (16).

It is a junction number, because it is equal to n+sod(n) for n = 52130294 and 52130303.

It is not an unprimeable number, because it can be changed into a prime (52130329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28740 + ... + 30499.

It is an arithmetic number, because the mean of its divisors is an integer number (3305592).

Almost surely, 2^52130320 is an apocalyptic number.

It is an amenable number.

52130320 is an abundant number, since it is smaller than the sum of its proper divisors (80093360).

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

52130320 is a wasteful number, since it uses less digits than its factorization.

52130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59263 (or 59257 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 52130320 is about 7220.1329627646. The cubic root of 52130320 is about 373.5626638037.

Adding to 52130320 its reverse (2303125), we get a palindrome (54433445).

The spelling of 52130320 in words is "fifty-two million, one hundred thirty thousand, three hundred twenty".