51306577450 has 12 divisors (see below), whose sum is σ = 95430234150. Its totient is φ = 20522630960.

The previous prime is 51306577447. The next prime is 51306577451. The reversal of 51306577450 is 5477560315.

It can be written as a sum of positive squares in 3 ways, for example, as 19198596481 + 32107980969 = 138559^2 + 179187^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51306577397 and 51306577406.

It is not an unprimeable number, because it can be changed into a prime (51306577451) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 513065725 + ... + 513065824.

Almost surely, 2^51306577450 is an apocalyptic number.

51306577450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51306577450 is a deficient number, since it is larger than the sum of its proper divisors (44123656700).

51306577450 is a wasteful number, since it uses less digits than its factorization.

51306577450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026131561 (or 1026131556 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 43.

The spelling of 51306577450 in words is "fifty-one billion, three hundred six million, five hundred seventy-seven thousand, four hundred fifty".