51903774976 has 81 divisors (see below), whose sum is σ = 107519552413. Its totient is φ = 25005962240.

The previous prime is 51903774943. The next prime is 51903774991. The reversal of 51903774976 is 67947730915.

The square root of 51903774976 is 227824.

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

It can be written as a sum of positive squares in only one way, i.e., 27217080576 + 24686694400 = 164976^2 + 157120^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51903774976.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 105710091 + ... + 105710581.

Almost surely, 2^51903774976 is an apocalyptic number.

51903774976 is the 227824-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51903774976

51903774976 is an abundant number, since it is smaller than the sum of its proper divisors (55615777437).

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

51903774976 is an frugal number, since it uses more digits than its factorization.

51903774976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 10001880, while the sum is 58.

The spelling of 51903774976 in words is "fifty-one billion, nine hundred three million, seven hundred seventy-four thousand, nine hundred seventy-six".