51916501 has 8 divisors (see below), whose sum is σ = 63897344. Its totient is φ = 41076720.

The previous prime is 51916477. The next prime is 51916511. The reversal of 51916501 is 10561915.

51916501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51916501 - 2¹⁷ = 51785429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51916501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51916511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285165 + ... + 285346.

It is an arithmetic number, because the mean of its divisors is an integer number (7987168).

Almost surely, 2^51916501 is an apocalyptic number.

It is an amenable number.

51916501 is a deficient number, since it is larger than the sum of its proper divisors (11980843).

51916501 is a wasteful number, since it uses less digits than its factorization.

51916501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570531.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 51916501 is about 7205.3106109314. The cubic root of 51916501 is about 373.0512259929.

It can be divided in two parts, 519 and 16501, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 51916501 in words is "fifty-one million, nine hundred sixteen thousand, five hundred one".