51852909 has 8 divisors (see below), whose sum is σ = 69311232. Its totient is φ = 34481600.

The previous prime is 51852893. The next prime is 51852923. The reversal of 51852909 is 90925815.

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 51852909 - 2⁴ = 51852893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51852979) 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, 20349 + ... + 22754.

It is an arithmetic number, because the mean of its divisors is an integer number (8663904).

Almost surely, 2^51852909 is an apocalyptic number.

It is an amenable number.

51852909 is a deficient number, since it is larger than the sum of its proper divisors (17458323).

51852909 is a wasteful number, since it uses less digits than its factorization.

51852909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43507.

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 51852909 is about 7200.8964025321. The cubic root of 51852909 is about 372.8988481955.

The spelling of 51852909 in words is "fifty-one million, eight hundred fifty-two thousand, nine hundred nine".