51784788 has 96 divisors (see below), whose sum is σ = 142829568. Its totient is φ = 14425600.

The previous prime is 51784751. The next prime is 51784819. The reversal of 51784788 is 88748715.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 105223 + ... + 105713.

It is an arithmetic number, because the mean of its divisors is an integer number (1487808).

Almost surely, 2^51784788 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 51784788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71414784).

51784788 is an abundant number, since it is smaller than the sum of its proper divisors (91044780).

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

51784788 is a wasteful number, since it uses less digits than its factorization.

51784788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 571 counting only the distinct ones).

The product of its digits is 501760, while the sum is 48.

The square root of 51784788 is about 7196.1648118981. The cubic root of 51784788 is about 372.7354798330.

The spelling of 51784788 in words is "fifty-one million, seven hundred eighty-four thousand, seven hundred eighty-eight".