52687648 has 24 divisors (see below), whose sum is σ = 111708828. Its totient is φ = 24317184.

The previous prime is 52687639. The next prime is 52687651. The reversal of 52687648 is 84678625.

It can be written as a sum of positive squares in 2 ways, for example, as 44462224 + 8225424 = 6668^2 + 2868^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52687598 and 52687607.

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, 62911 + ... + 63742.

Almost surely, 2^52687648 is an apocalyptic number.

It is an amenable number.

52687648 is an abundant number, since it is smaller than the sum of its proper divisors (59021180).

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

52687648 is a wasteful number, since it uses less digits than its factorization.

52687648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126676 (or 126668 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 52687648 is about 7258.6257652534. The cubic root of 52687648 is about 374.8892069733.

It can be divided in two parts, 52687 and 648, that added together give a palindrome (53335).

The spelling of 52687648 in words is "fifty-two million, six hundred eighty-seven thousand, six hundred forty-eight".