51250749120 has 168 divisors, whose sum is σ = 183945861216. Its totient is φ = 13072637952.

The previous prime is 51250749113. The next prime is 51250749197. The reversal of 51250749120 is 2194705215.

51250749120 is a `hidden beast` number, since 512 + 50 + 7 + 4 + 91 + 2 + 0 = 666.

It is a super-2 number, since 2×51250749120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320617 + ... + 453096.

Almost surely, 2^51250749120 is an apocalyptic number.

It is an amenable number.

51250749120 is an abundant number, since it is smaller than the sum of its proper divisors (132695112096).

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

51250749120 is a wasteful number, since it uses less digits than its factorization.

51250749120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773759 (or 773746 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 51250749120 in words is "fifty-one billion, two hundred fifty million, seven hundred forty-nine thousand, one hundred twenty".