51968651 has 8 divisors (see below), whose sum is σ = 59692800. Its totient is φ = 44319528.

The previous prime is 51968647. The next prime is 51968701. The reversal of 51968651 is 15686915.

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 51968651 - 2² = 51968647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51968599 and 51968608.

It is not an unprimeable number, because it can be changed into a prime (51968611) 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, 17261 + ... + 20046.

It is an arithmetic number, because the mean of its divisors is an integer number (7461600).

Almost surely, 2^51968651 is an apocalyptic number.

51968651 is a deficient number, since it is larger than the sum of its proper divisors (7724149).

51968651 is a wasteful number, since it uses less digits than its factorization.

51968651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37513.

The product of its digits is 64800, while the sum is 41.

The square root of 51968651 is about 7208.9285611664. The cubic root of 51968651 is about 373.1760938779.

The spelling of 51968651 in words is "fifty-one million, nine hundred sixty-eight thousand, six hundred fifty-one".