51864935 has 8 divisors (see below), whose sum is σ = 63920256. Its totient is φ = 40370400.

The previous prime is 51864893. The next prime is 51864941. The reversal of 51864935 is 53946815.

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

It is not a de Polignac number, because 51864935 - 2⁶ = 51864871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51864892 and 51864901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139991 + ... + 140360.

It is an arithmetic number, because the mean of its divisors is an integer number (7990032).

Almost surely, 2^51864935 is an apocalyptic number.

51864935 is a deficient number, since it is larger than the sum of its proper divisors (12055321).

51864935 is a wasteful number, since it uses less digits than its factorization.

51864935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280393.

The product of its digits is 129600, while the sum is 41.

The square root of 51864935 is about 7201.7313890481. The cubic root of 51864935 is about 372.9276741893.

The spelling of 51864935 in words is "fifty-one million, eight hundred sixty-four thousand, nine hundred thirty-five".