52728451 has 2 divisors, whose sum is σ = 52728452. Its totient is φ = 52728450.

The previous prime is 52728391. The next prime is 52728457. The reversal of 52728451 is 15482725.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52728451 - 2¹¹ = 52726403 is a prime.

It is not a weakly prime, because it can be changed into another prime (52728457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26364225 + 26364226.

It is an arithmetic number, because the mean of its divisors is an integer number (26364226).

Almost surely, 2^52728451 is an apocalyptic number.

52728451 is a deficient number, since it is larger than the sum of its proper divisors (1).

52728451 is an equidigital number, since it uses as much as digits as its factorization.

52728451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22400, while the sum is 34.

The square root of 52728451 is about 7261.4358772904. The cubic root of 52728451 is about 374.9859574001.

The spelling of 52728451 in words is "fifty-two million, seven hundred twenty-eight thousand, four hundred fifty-one".