51793488 has 60 divisors (see below), whose sum is σ = 148882708. Its totient is φ = 16796160.

The previous prime is 51793481. The next prime is 51793499. The reversal of 51793488 is 88439715.

51793488 is a `hidden beast` number, since 517 + 93 + 48 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21455424 + 30338064 = 4632^2 + 5508^2 .

It is a super-2 number, since 2×51793488² = 5365130798412288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51793481) 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 11 ways as a sum of consecutive naturals, for example, 468 + ... + 10188.

Almost surely, 2^51793488 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 51793488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74441354).

51793488 is an abundant number, since it is smaller than the sum of its proper divisors (97089220).

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

51793488 is a wasteful number, since it uses less digits than its factorization.

51793488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9772 (or 9763 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 51793488 is about 7196.7692751679. The cubic root of 51793488 is about 372.7563522244.

The spelling of 51793488 in words is "fifty-one million, seven hundred ninety-three thousand, four hundred eighty-eight".