52939280 has 20 divisors (see below), whose sum is σ = 123084012. Its totient is φ = 21175680.

The previous prime is 52939273. The next prime is 52939283. The reversal of 52939280 is 8293925.

It can be written as a sum of positive squares in 2 ways, for example, as 12845056 + 40094224 = 3584^2 + 6332^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (52939283) 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 3 ways as a sum of consecutive naturals, for example, 330791 + ... + 330950.

Almost surely, 2^52939280 is an apocalyptic number.

It is an amenable number.

52939280 is an abundant number, since it is smaller than the sum of its proper divisors (70144732).

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

52939280 is a wasteful number, since it uses less digits than its factorization.

52939280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661754 (or 661748 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 52939280 is about 7275.9384274470. The cubic root of 52939280 is about 375.4850730147.

The spelling of 52939280 in words is "fifty-two million, nine hundred thirty-nine thousand, two hundred eighty".