51938679250 has 16 divisors (see below), whose sum is σ = 97229208024. Its totient is φ = 20775471600.

The previous prime is 51938679211. The next prime is 51938679269. The reversal of 51938679250 is 5297683915.

51938679250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14985921889 + 36952757361 = 122417^2 + 192231^2 .

It is a super-3 number, since 3×51938679250³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51938679191 and 51938679200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103877109 + ... + 103877608.

Almost surely, 2^51938679250 is an apocalyptic number.

51938679250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51938679250 is a deficient number, since it is larger than the sum of its proper divisors (45290528774).

51938679250 is a wasteful number, since it uses less digits than its factorization.

51938679250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207754734 (or 207754724 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 51938679250 in words is "fifty-one billion, nine hundred thirty-eight million, six hundred seventy-nine thousand, two hundred fifty".