51799320 has 96 divisors (see below), whose sum is σ = 177231600. Its totient is φ = 13084416.

The previous prime is 51799303. The next prime is 51799327. The reversal of 51799320 is 2399715.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51799327) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3054 + ... + 10626.

Almost surely, 2^51799320 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 51799320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88615800).

51799320 is an abundant number, since it is smaller than the sum of its proper divisors (125432280).

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

51799320 is a wasteful number, since it uses less digits than its factorization.

51799320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7609 (or 7602 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 51799320 is about 7197.1744455724. The cubic root of 51799320 is about 372.7703426155.

The spelling of 51799320 in words is "fifty-one million, seven hundred ninety-nine thousand, three hundred twenty".