53052320 has 24 divisors (see below), whose sum is σ = 125336484. Its totient is φ = 21220864.

The previous prime is 53052299. The next prime is 53052347. The reversal of 53052320 is 2325035.

It can be written as a sum of positive squares in 2 ways, for example, as 48052624 + 4999696 = 6932^2 + 2236^2 .

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 = 53052292 and 53052301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165629 + ... + 165948.

Almost surely, 2^53052320 is an apocalyptic number.

It is an amenable number.

53052320 is an abundant number, since it is smaller than the sum of its proper divisors (72284164).

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

53052320 is a wasteful number, since it uses less digits than its factorization.

53052320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331592 (or 331584 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 53052320 is about 7283.7023552586. The cubic root of 53052320 is about 375.7521378353.

Adding to 53052320 its reverse (2325035), we get a palindrome (55377355).

The spelling of 53052320 in words is "fifty-three million, fifty-two thousand, three hundred twenty".