52727921 has 2 divisors, whose sum is σ = 52727922. Its totient is φ = 52727920.

The previous prime is 52727911. The next prime is 52727953. The reversal of 52727921 is 12972725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26666896 + 26061025 = 5164^2 + 5105^2 .

It is a cyclic number.

It is not a de Polignac number, because 52727921 - 2¹⁴ = 52711537 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (52727911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26363960 + 26363961.

It is an arithmetic number, because the mean of its divisors is an integer number (26363961).

Almost surely, 2^52727921 is an apocalyptic number.

It is an amenable number.

52727921 is a deficient number, since it is larger than the sum of its proper divisors (1).

52727921 is an equidigital number, since it uses as much as digits as its factorization.

52727921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 52727921 is about 7261.3993830391. The cubic root of 52727921 is about 374.9847010055.

The spelling of 52727921 in words is "fifty-two million, seven hundred twenty-seven thousand, nine hundred twenty-one".