51250323504 has 80 divisors (see below), whose sum is σ = 140766927840. Its totient is φ = 16011755520.

The previous prime is 51250323499. The next prime is 51250323511. The reversal of 51250323504 is 40532305215.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66352 + ... + 326960.

It is an arithmetic number, because the mean of its divisors is an integer number (1759586598).

Almost surely, 2^51250323504 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 51250323504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70383463920).

51250323504 is an abundant number, since it is smaller than the sum of its proper divisors (89516604336).

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

51250323504 is a wasteful number, since it uses less digits than its factorization.

51250323504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260878 (or 260872 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 51250323504 its reverse (40532305215), we get a palindrome (91782628719).

The spelling of 51250323504 in words is "fifty-one billion, two hundred fifty million, three hundred twenty-three thousand, five hundred four".