51793992 has 112 divisors (see below), whose sum is σ = 148735440. Its totient is φ = 16897248.

The previous prime is 51793961. The next prime is 51793993. The reversal of 51793992 is 29939715.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51793993) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 484003 + ... + 484109.

It is an arithmetic number, because the mean of its divisors is an integer number (1327995).

Almost surely, 2^51793992 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 51793992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74367720).

51793992 is an abundant number, since it is smaller than the sum of its proper divisors (96941448).

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

51793992 is a wasteful number, since it uses less digits than its factorization.

51793992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 195 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 51793992 is about 7196.8042907946. The cubic root of 51793992 is about 372.7575613120.

The spelling of 51793992 in words is "fifty-one million, seven hundred ninety-three thousand, nine hundred ninety-two".