53133533 has 4 divisors (see below), whose sum is σ = 53321568. Its totient is φ = 52945500.

The previous prime is 53133527. The next prime is 53133559. The reversal of 53133533 is 33533135.

53133533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53133533 - 2²² = 48939229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53133503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93593 + ... + 94158.

It is an arithmetic number, because the mean of its divisors is an integer number (13330392).

Almost surely, 2^53133533 is an apocalyptic number.

It is an amenable number.

53133533 is a deficient number, since it is larger than the sum of its proper divisors (188035).

53133533 is a wasteful number, since it uses less digits than its factorization.

53133533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188034.

The product of its digits is 6075, while the sum is 26.

The square root of 53133533 is about 7289.2752040241. The cubic root of 53133533 is about 375.9437750733.

Adding to 53133533 its reverse (33533135), we get a palindrome (86666668).

The spelling of 53133533 in words is "fifty-three million, one hundred thirty-three thousand, five hundred thirty-three".