52728641 has 16 divisors (see below), whose sum is σ = 62937600. Its totient is φ = 43219008.

The previous prime is 52728623. The next prime is 52728653. The reversal of 52728641 is 14682725.

It is not a de Polignac number, because 52728641 - 2¹⁸ = 52466497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52728691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20936 + ... + 23318.

It is an arithmetic number, because the mean of its divisors is an integer number (3933600).

Almost surely, 2^52728641 is an apocalyptic number.

It is an amenable number.

52728641 is a deficient number, since it is larger than the sum of its proper divisors (10208959).

52728641 is a wasteful number, since it uses less digits than its factorization.

52728641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528.

The product of its digits is 26880, while the sum is 35.

The square root of 52728641 is about 7261.4489600905. The cubic root of 52728641 is about 374.9864078036.

The spelling of 52728641 in words is "fifty-two million, seven hundred twenty-eight thousand, six hundred forty-one".