53135666 has 8 divisors (see below), whose sum is σ = 83898480. Its totient is φ = 25169508.

The previous prime is 53135639. The next prime is 53135701. The reversal of 53135666 is 66653135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699116 + ... + 699191.

It is an arithmetic number, because the mean of its divisors is an integer number (10487310).

Almost surely, 2^53135666 is an apocalyptic number.

53135666 is a deficient number, since it is larger than the sum of its proper divisors (30762814).

53135666 is a wasteful number, since it uses less digits than its factorization.

53135666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398328.

The product of its digits is 48600, while the sum is 35.

The square root of 53135666 is about 7289.4215133987. The cubic root of 53135666 is about 375.9488056525.

The spelling of 53135666 in words is "fifty-three million, one hundred thirty-five thousand, six hundred sixty-six".