53452520 has 64 divisors (see below), whose sum is σ = 134447040. Its totient is φ = 18956800.

The previous prime is 53452519. The next prime is 53452523. The reversal of 53452520 is 2525435.

It is a self number, because there is not a number n which added to its sum of digits gives 53452520.

It is not an unprimeable number, because it can be changed into a prime (53452523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16559 + ... + 19521.

It is an arithmetic number, because the mean of its divisors is an integer number (2100735).

Almost surely, 2^53452520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53452520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67223520).

53452520 is an abundant number, since it is smaller than the sum of its proper divisors (80994520).

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

53452520 is a wasteful number, since it uses less digits than its factorization.

53452520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026 (or 3022 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 53452520 is about 7311.1230327495. The cubic root of 53452520 is about 376.6946003074.

Adding to 53452520 its reverse (2525435), we get a palindrome (55977955).

The spelling of 53452520 in words is "fifty-three million, four hundred fifty-two thousand, five hundred twenty".