51968859 has 8 divisors (see below), whose sum is σ = 69476160. Its totient is φ = 34553736.

The previous prime is 51968827. The next prime is 51968863. The reversal of 51968859 is 95886915.

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

It is not a de Polignac number, because 51968859 - 2⁵ = 51968827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51968809) 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, 21717 + ... + 23990.

It is an arithmetic number, because the mean of its divisors is an integer number (8684520).

Almost surely, 2^51968859 is an apocalyptic number.

51968859 is a deficient number, since it is larger than the sum of its proper divisors (17507301).

51968859 is a wasteful number, since it uses less digits than its factorization.

51968859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46089.

The product of its digits is 777600, while the sum is 51.

The square root of 51968859 is about 7208.9429877063. The cubic root of 51968859 is about 373.1765917455.

It can be divided in two parts, 519 and 68859, that added together give a triangular number (69378 = T₃₇₂).

The spelling of 51968859 in words is "fifty-one million, nine hundred sixty-eight thousand, eight hundred fifty-nine".