52164491 has 2 divisors, whose sum is σ = 52164492. Its totient is φ = 52164490.

The previous prime is 52164439. The next prime is 52164499. The reversal of 52164491 is 19446125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52164491 - 2²² = 47970187 is a prime.

It is a super-2 number, since 2×52164491² = 5442268242578162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52164499) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26082245 + 26082246.

It is an arithmetic number, because the mean of its divisors is an integer number (26082246).

Almost surely, 2^52164491 is an apocalyptic number.

52164491 is a deficient number, since it is larger than the sum of its proper divisors (1).

52164491 is an equidigital number, since it uses as much as digits as its factorization.

52164491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 52164491 is about 7222.4989442713. The cubic root of 52164491 is about 373.6442684034.

The spelling of 52164491 in words is "fifty-two million, one hundred sixty-four thousand, four hundred ninety-one".