53332520 has 16 divisors (see below), whose sum is σ = 119998260. Its totient is φ = 21332992.

The previous prime is 53332471. The next prime is 53332523. The reversal of 53332520 is 2523335.

It can be written as a sum of positive squares in 2 ways, for example, as 49308484 + 4024036 = 7022^2 + 2006^2 .

It is not an unprimeable number, because it can be changed into a prime (53332523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666617 + ... + 666696.

Almost surely, 2^53332520 is an apocalyptic number.

It is an amenable number.

53332520 is an abundant number, since it is smaller than the sum of its proper divisors (66665740).

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

53332520 is a wasteful number, since it uses less digits than its factorization.

53332520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333324 (or 1333320 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 53332520 is about 7302.9117480632. The cubic root of 53332520 is about 376.4124981028.

Adding to 53332520 its reverse (2523335), we get a palindrome (55855855).

The spelling of 53332520 in words is "fifty-three million, three hundred thirty-two thousand, five hundred twenty".