53165533 has 2 divisors, whose sum is σ = 53165534. Its totient is φ = 53165532.

The previous prime is 53165531. The next prime is 53165537. The reversal of 53165533 is 33556135.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52969284 + 196249 = 7278^2 + 443^2 .

It is a cyclic number.

It is not a de Polignac number, because 53165533 - 2¹ = 53165531 is a prime.

Together with 53165531, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 53165495 and 53165504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53165531) 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, 26582766 + 26582767.

It is an arithmetic number, because the mean of its divisors is an integer number (26582767).

Almost surely, 2^53165533 is an apocalyptic number.

It is an amenable number.

53165533 is a deficient number, since it is larger than the sum of its proper divisors (1).

53165533 is an equidigital number, since it uses as much as digits as its factorization.

53165533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20250, while the sum is 31.

The square root of 53165533 is about 7291.4698792493. The cubic root of 53165533 is about 376.0192314179.

The spelling of 53165533 in words is "fifty-three million, one hundred sixty-five thousand, five hundred thirty-three".