65525533 has 2 divisors, whose sum is σ = 65525534. Its totient is φ = 65525532.

The previous prime is 65525527. The next prime is 65525609. The reversal of 65525533 is 33552556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36505764 + 29019769 = 6042^2 + 5387^2 .

It is a cyclic number.

It is not a de Polignac number, because 65525533 - 2¹³ = 65517341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65525513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32762766 + 32762767.

It is an arithmetic number, because the mean of its divisors is an integer number (32762767).

Almost surely, 2^65525533 is an apocalyptic number.

It is an amenable number.

65525533 is a deficient number, since it is larger than the sum of its proper divisors (1).

65525533 is an equidigital number, since it uses as much as digits as its factorization.

65525533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67500, while the sum is 34.

The square root of 65525533 is about 8094.7843084297. The cubic root of 65525533 is about 403.1532706412.

It can be divided in two parts, 6552553 and 3, that added together give a palindrome (6552556).

The spelling of 65525533 in words is "sixty-five million, five hundred twenty-five thousand, five hundred thirty-three".