51752447982 has 48 divisors (see below), whose sum is σ = 123888229920. Its totient is φ = 15530144256.

The previous prime is 51752447963. The next prime is 51752447983. The reversal of 51752447982 is 28974425715.

51752447982 is a `hidden beast` number, since 5 + 1 + 75 + 24 + 479 + 82 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51752447983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3669607 + ... + 3683682.

It is an arithmetic number, because the mean of its divisors is an integer number (2581004790).

Almost surely, 2^51752447982 is an apocalyptic number.

51752447982 is an abundant number, since it is smaller than the sum of its proper divisors (72135781938).

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

51752447982 is a wasteful number, since it uses less digits than its factorization.

51752447982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7353337 (or 7353334 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 51752447982 in words is "fifty-one billion, seven hundred fifty-two million, four hundred forty-seven thousand, nine hundred eighty-two".