51700616 has 32 divisors (see below), whose sum is σ = 106488000. Its totient is φ = 23336640.

The previous prime is 51700601. The next prime is 51700651. The reversal of 51700616 is 61600715.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11141 + ... + 15083.

It is an arithmetic number, because the mean of its divisors is an integer number (3327750).

Almost surely, 2^51700616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51700616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53244000).

51700616 is an abundant number, since it is smaller than the sum of its proper divisors (54787384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51700616 is a wasteful number, since it uses less digits than its factorization.

51700616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109 (or 4105 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 51700616 is about 7190.3140404297. The cubic root of 51700616 is about 372.5334198204.

Subtracting 51700616 from its reverse (61600715), we obtain a palindrome (9900099).

The spelling of 51700616 in words is "fifty-one million, seven hundred thousand, six hundred sixteen".