51278013050 has 48 divisors (see below), whose sum is σ = 105216926400. Its totient is φ = 18437020800.

The previous prime is 51278013047. The next prime is 51278013077. The reversal of 51278013050 is 5031087215.

51278013050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51278012998 and 51278013016.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 474830 + ... + 572729.

It is an arithmetic number, because the mean of its divisors is an integer number (2192019300).

Almost surely, 2^51278013050 is an apocalyptic number.

51278013050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51278013050 is an abundant number, since it is smaller than the sum of its proper divisors (53938913350).

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

51278013050 is a wasteful number, since it uses less digits than its factorization.

51278013050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047671 (or 1047666 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 51278013050 in words is "fifty-one billion, two hundred seventy-eight million, thirteen thousand, fifty".