52657133 has 4 divisors (see below), whose sum is σ = 52677180. Its totient is φ = 52637088.

The previous prime is 52657103. The next prime is 52657141. The reversal of 52657133 is 33175625.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13557124 + 39100009 = 3682^2 + 6253^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52657133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52657133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52657103) 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 in 3 ways as a sum of consecutive naturals, for example, 5360 + ... + 11577.

It is an arithmetic number, because the mean of its divisors is an integer number (13169295).

Almost surely, 2^52657133 is an apocalyptic number.

It is an amenable number.

52657133 is a deficient number, since it is larger than the sum of its proper divisors (20047).

52657133 is a wasteful number, since it uses less digits than its factorization.

52657133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20046.

The product of its digits is 18900, while the sum is 32.

The square root of 52657133 is about 7256.5234789119. The cubic root of 52657133 is about 374.8168183851.

The spelling of 52657133 in words is "fifty-two million, six hundred fifty-seven thousand, one hundred thirty-three".