52821611 has 2 divisors, whose sum is σ = 52821612. Its totient is φ = 52821610.

The previous prime is 52821581. The next prime is 52821619. The reversal of 52821611 is 11612825.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52821611 - 2²² = 48627307 is a prime.

It is not a weakly prime, because it can be changed into another prime (52821619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26410805 + 26410806.

It is an arithmetic number, because the mean of its divisors is an integer number (26410806).

Almost surely, 2^52821611 is an apocalyptic number.

52821611 is a deficient number, since it is larger than the sum of its proper divisors (1).

52821611 is an equidigital number, since it uses as much as digits as its factorization.

52821611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 26.

The square root of 52821611 is about 7267.8477556977. The cubic root of 52821611 is about 375.2066677113.

The spelling of 52821611 in words is "fifty-two million, eight hundred twenty-one thousand, six hundred eleven".