51999296 has 56 divisors (see below), whose sum is σ = 107533440. Its totient is φ = 24929792.

The previous prime is 51999281. The next prime is 51999317. The reversal of 51999296 is 69299915.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177326 + ... + 177618.

It is an arithmetic number, because the mean of its divisors is an integer number (1920240).

Almost surely, 2^51999296 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 51999296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53766720).

51999296 is an abundant number, since it is smaller than the sum of its proper divisors (55534144).

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

51999296 is a wasteful number, since it uses less digits than its factorization.

51999296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 401 counting only the distinct ones).

The product of its digits is 393660, while the sum is 50.

The square root of 51999296 is about 7211.0537371455. The cubic root of 51999296 is about 373.2494312588.

The spelling of 51999296 in words is "fifty-one million, nine hundred ninety-nine thousand, two hundred ninety-six".