52636320 has 144 divisors (see below), whose sum is σ = 196009632. Its totient is φ = 12756480.

The previous prime is 52636313. The next prime is 52636321. The reversal of 52636320 is 2363625.

52636320 is a `hidden beast` number, since 5 + 2 + 636 + 3 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (52636321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14179 + ... + 17501.

It is an arithmetic number, because the mean of its divisors is an integer number (1361178).

Almost surely, 2^52636320 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 52636320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98004816).

52636320 is an abundant number, since it is smaller than the sum of its proper divisors (143373312).

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

52636320 is a wasteful number, since it uses less digits than its factorization.

52636320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355 (or 3344 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 52636320 is about 7255.0892482450. The cubic root of 52636320 is about 374.7674291253.

Adding to 52636320 its reverse (2363625), we get a palindrome (54999945).

The spelling of 52636320 in words is "fifty-two million, six hundred thirty-six thousand, three hundred twenty".