52749687 has 8 divisors (see below), whose sum is σ = 70470000. Its totient is φ = 35097920.

The previous prime is 52749629. The next prime is 52749701. The reversal of 52749687 is 78694725.

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

It is a cyclic number.

It is not a de Polignac number, because 52749687 - 2⁷ = 52749559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52749607) 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, 15312 + ... + 18437.

It is an arithmetic number, because the mean of its divisors is an integer number (8808750).

Almost surely, 2^52749687 is an apocalyptic number.

52749687 is a deficient number, since it is larger than the sum of its proper divisors (17720313).

52749687 is a wasteful number, since it uses less digits than its factorization.

52749687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34273.

The product of its digits is 846720, while the sum is 48.

The square root of 52749687 is about 7262.8979753264. The cubic root of 52749687 is about 375.0362915988.

The spelling of 52749687 in words is "fifty-two million, seven hundred forty-nine thousand, six hundred eighty-seven".