51250620996 has 45 divisors (see below), whose sum is σ = 133989900429. Its totient is φ = 17082182016.

The previous prime is 51250620989. The next prime is 51250621013. The reversal of 51250620996 is 69902605215.

It is a happy number.

The square root of 51250620996 is 226386.

It is a perfect power (a square), and thus also a powerful number.

51250620996 is a `hidden beast` number, since 5 + 12 + 5 + 0 + 620 + 9 + 9 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47162808900 + 4087812096 = 217170^2 + 63936^2 .

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 14 ways as a sum of consecutive naturals, for example, 4068660 + ... + 4081236.

Almost surely, 2^51250620996 is an apocalyptic number.

51250620996 is the 226386-th square number.

It is an amenable number.

51250620996 is an abundant number, since it is smaller than the sum of its proper divisors (82739279433).

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

51250620996 is an frugal number, since it uses more digits than its factorization.

51250620996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25170 (or 12582 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 51250620996 in words is "fifty-one billion, two hundred fifty million, six hundred twenty thousand, nine hundred ninety-six".