52637328 has 30 divisors (see below), whose sum is σ = 147311814. Its totient is φ = 17545728.

The previous prime is 52637303. The next prime is 52637329. The reversal of 52637328 is 82373625.

It can be written as a sum of positive squares in only one way, i.e., 26749584 + 25887744 = 5172^2 + 5088^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52637292 and 52637301.

It is not an unprimeable number, because it can be changed into a prime (52637329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182625 + ... + 182912.

Almost surely, 2^52637328 is an apocalyptic number.

It is an amenable number.

52637328 is an abundant number, since it is smaller than the sum of its proper divisors (94674486).

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

52637328 is a wasteful number, since it uses less digits than its factorization.

52637328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365551 (or 365542 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 52637328 is about 7255.1587163893. The cubic root of 52637328 is about 374.7698214098.

The spelling of 52637328 in words is "fifty-two million, six hundred thirty-seven thousand, three hundred twenty-eight".