51573407382 has 288 divisors, whose sum is σ = 144194450400. Its totient is φ = 13219670016.

The previous prime is 51573407371. The next prime is 51573407401. The reversal of 51573407382 is 28370437515.

51573407382 is a `hidden beast` number, since 5 + 1 + 573 + 4 + 0 + 73 + 8 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 36089844 + ... + 36091272.

It is an arithmetic number, because the mean of its divisors is an integer number (500675175).

Almost surely, 2^51573407382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51573407382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72097225200).

51573407382 is an abundant number, since it is smaller than the sum of its proper divisors (92621043018).

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

51573407382 is a wasteful number, since it uses less digits than its factorization.

51573407382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 1570 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 51573407382 in words is "fifty-one billion, five hundred seventy-three million, four hundred seven thousand, three hundred eighty-two".