52666135 has 4 divisors (see below), whose sum is σ = 63199368. Its totient is φ = 42132904.

The previous prime is 52666123. The next prime is 52666139. The reversal of 52666135 is 53166625.

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

It is a cyclic number.

It is not a de Polignac number, because 52666135 - 2¹⁵ = 52633367 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 52666135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52666139) 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, 5266609 + ... + 5266618.

It is an arithmetic number, because the mean of its divisors is an integer number (15799842).

Almost surely, 2^52666135 is an apocalyptic number.

52666135 is a deficient number, since it is larger than the sum of its proper divisors (10533233).

52666135 is a wasteful number, since it uses less digits than its factorization.

52666135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10533232.

The product of its digits is 32400, while the sum is 34.

The square root of 52666135 is about 7257.1437218785. The cubic root of 52666135 is about 374.8381761040.

The spelling of 52666135 in words is "fifty-two million, six hundred sixty-six thousand, one hundred thirty-five".