52993728 has 42 divisors (see below), whose sum is σ = 151898604. Its totient is φ = 17664384.

The previous prime is 52993669. The next prime is 52993751. The reversal of 52993728 is 82739925.

It is an unprimeable number.

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, 45426 + ... + 46577.

Almost surely, 2^52993728 is an apocalyptic number.

It is an amenable number.

52993728 is an abundant number, since it is smaller than the sum of its proper divisors (98904876).

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

52993728 is a wasteful number, since it uses less digits than its factorization.

52993728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92021 (or 92008 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 52993728 is about 7279.6791138071. The cubic root of 52993728 is about 375.6137575896.

The spelling of 52993728 in words is "fifty-two million, nine hundred ninety-three thousand, seven hundred twenty-eight".