52973728 has 24 divisors (see below), whose sum is σ = 104740020. Its totient is φ = 26373120.

The previous prime is 52973719. The next prime is 52973731. The reversal of 52973728 is 82737925.

It can be written as a sum of positive squares in 2 ways, for example, as 50865424 + 2108304 = 7132^2 + 1452^2 .

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, 4278 + ... + 11146.

Almost surely, 2^52973728 is an apocalyptic number.

It is an amenable number.

52973728 is a deficient number, since it is larger than the sum of its proper divisors (51766292).

52973728 is a wasteful number, since it uses less digits than its factorization.

52973728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120 (or 7112 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 52973728 is about 7278.3052972516. The cubic root of 52973728 is about 375.5664990386.

It can be divided in two parts, 5297 and 3728, that added together give a square (9025 = 95²).

The spelling of 52973728 in words is "fifty-two million, nine hundred seventy-three thousand, seven hundred twenty-eight".