52815648 has 24 divisors (see below), whose sum is σ = 138641328. Its totient is φ = 17605184.

The previous prime is 52815647. The next prime is 52815673. The reversal of 52815648 is 84651825.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×52815648³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (52815647) 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, 274986 + ... + 275177.

It is an arithmetic number, because the mean of its divisors is an integer number (5776722).

Almost surely, 2^52815648 is an apocalyptic number.

It is an amenable number.

52815648 is an abundant number, since it is smaller than the sum of its proper divisors (85825680).

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

52815648 is a wasteful number, since it uses less digits than its factorization.

52815648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550176 (or 550168 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 52815648 is about 7267.4375126313. The cubic root of 52815648 is about 375.1925482280.

The spelling of 52815648 in words is "fifty-two million, eight hundred fifteen thousand, six hundred forty-eight".