51016687 has 8 divisors (see below), whose sum is σ = 52462080. Its totient is φ = 49589280.

The previous prime is 51016649. The next prime is 51016733. The reversal of 51016687 is 78661015.

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 51016687 - 2¹⁹ = 50492399 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 (51016627) 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, 1362 + ... + 10192.

It is an arithmetic number, because the mean of its divisors is an integer number (6557760).

Almost surely, 2^51016687 is an apocalyptic number.

51016687 is a deficient number, since it is larger than the sum of its proper divisors (1445393).

51016687 is a wasteful number, since it uses less digits than its factorization.

51016687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8993.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 51016687 is about 7142.5966566789. The cubic root of 51016687 is about 370.8834186387.

The spelling of 51016687 in words is "fifty-one million, sixteen thousand, six hundred eighty-seven".