52161533 has 2 divisors, whose sum is σ = 52161534. Its totient is φ = 52161532.

The previous prime is 52161503. The next prime is 52161547. The reversal of 52161533 is 33516125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40615129 + 11546404 = 6373^2 + 3398^2 .

It is a cyclic number.

It is not a de Polignac number, because 52161533 - 2¹⁸ = 51899389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52161503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26080766 + 26080767.

It is an arithmetic number, because the mean of its divisors is an integer number (26080767).

Almost surely, 2^52161533 is an apocalyptic number.

It is an amenable number.

52161533 is a deficient number, since it is larger than the sum of its proper divisors (1).

52161533 is an equidigital number, since it uses as much as digits as its factorization.

52161533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 26.

The square root of 52161533 is about 7222.2941645989. The cubic root of 52161533 is about 373.6372057405.

Adding to 52161533 its reverse (33516125), we get a palindrome (85677658).

The spelling of 52161533 in words is "fifty-two million, one hundred sixty-one thousand, five hundred thirty-three".