51599688 has 64 divisors (see below), whose sum is σ = 148936320. Its totient is φ = 14592000.

The previous prime is 51599677. The next prime is 51599707. The reversal of 51599688 is 88699515.

It is a self number, because there is not a number n which added to its sum of digits gives 51599688.

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 15 ways as a sum of consecutive naturals, for example, 15448 + ... + 18488.

It is an arithmetic number, because the mean of its divisors is an integer number (2327130).

Almost surely, 2^51599688 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 51599688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74468160).

51599688 is an abundant number, since it is smaller than the sum of its proper divisors (97336632).

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

51599688 is a wasteful number, since it uses less digits than its factorization.

51599688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158 (or 3154 counting only the distinct ones).

The product of its digits is 777600, while the sum is 51.

The square root of 51599688 is about 7183.2922813986. The cubic root of 51599688 is about 372.2908466561.

The spelling of 51599688 in words is "fifty-one million, five hundred ninety-nine thousand, six hundred eighty-eight".