52815533 has 2 divisors, whose sum is σ = 52815534. Its totient is φ = 52815532.

The previous prime is 52815523. The next prime is 52815557. The reversal of 52815533 is 33551825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51868804 + 946729 = 7202^2 + 973^2 .

It is a cyclic number.

It is not a de Polignac number, because 52815533 - 2²² = 48621229 is a prime.

It is a super-3 number, since 3×52815533³ (a number of 24 digits) contains 333 as substring.

It is equal to p_3159680 and since 52815533 and 3159680 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52815533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52815523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26407766 + 26407767.

It is an arithmetic number, because the mean of its divisors is an integer number (26407767).

Almost surely, 2^52815533 is an apocalyptic number.

It is an amenable number.

52815533 is a deficient number, since it is larger than the sum of its proper divisors (1).

52815533 is an equidigital number, since it uses as much as digits as its factorization.

52815533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 32.

The square root of 52815533 is about 7267.4296006222. The cubic root of 52815533 is about 375.1922759149.

It can be divided in two parts, 528 and 15533, that added together give a palindrome (16061).

The spelling of 52815533 in words is "fifty-two million, eight hundred fifteen thousand, five hundred thirty-three".