51868061 has 8 divisors (see below), whose sum is σ = 59337024. Its totient is φ = 44413920.

The previous prime is 51868057. The next prime is 51868073. The reversal of 51868061 is 16086815.

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 51868061 - 2² = 51868057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51868051) 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, 5246 + ... + 11456.

It is an arithmetic number, because the mean of its divisors is an integer number (7417128).

Almost surely, 2^51868061 is an apocalyptic number.

It is an amenable number.

51868061 is a deficient number, since it is larger than the sum of its proper divisors (7468963).

51868061 is a wasteful number, since it uses less digits than its factorization.

51868061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 51868061 is about 7201.9484169216. The cubic root of 51868061 is about 372.9351663963.

The spelling of 51868061 in words is "fifty-one million, eight hundred sixty-eight thousand, sixty-one".