52135666 has 16 divisors (see below), whose sum is σ = 86274720. Its totient is φ = 23430880.

The previous prime is 52135637. The next prime is 52135667. The reversal of 52135666 is 66653125.

It is not an unprimeable number, because it can be changed into a prime (52135667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11356 + ... + 15271.

It is an arithmetic number, because the mean of its divisors is an integer number (5392170).

Almost surely, 2^52135666 is an apocalyptic number.

52135666 is a deficient number, since it is larger than the sum of its proper divisors (34139054).

52135666 is a wasteful number, since it uses less digits than its factorization.

52135666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26729.

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

The square root of 52135666 is about 7220.5031680625. The cubic root of 52135666 is about 373.5754330695.

The spelling of 52135666 in words is "fifty-two million, one hundred thirty-five thousand, six hundred sixty-six".