53531133 has 4 divisors (see below), whose sum is σ = 71374848. Its totient is φ = 35687420.

The previous prime is 53531131. The next prime is 53531171. The reversal of 53531133 is 33113535.

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 53531133 - 2¹ = 53531131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53531131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8921853 + ... + 8921858.

It is an arithmetic number, because the mean of its divisors is an integer number (17843712).

Almost surely, 2^53531133 is an apocalyptic number.

It is an amenable number.

53531133 is a deficient number, since it is larger than the sum of its proper divisors (17843715).

53531133 is a wasteful number, since it uses less digits than its factorization.

53531133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17843714.

The product of its digits is 2025, while the sum is 24.

The square root of 53531133 is about 7316.4973177061. The cubic root of 53531133 is about 376.8791789894.

Adding to 53531133 its reverse (33113535), we get a palindrome (86644668).

The spelling of 53531133 in words is "fifty-three million, five hundred thirty-one thousand, one hundred thirty-three".