51228459854 has 16 divisors (see below), whose sum is σ = 90276726960. Its totient is φ = 21494458560.

The previous prime is 51228459811. The next prime is 51228459859. The reversal of 51228459854 is 45895482215.

It is a junction number, because it is equal to n+sod(n) for n = 51228459796 and 51228459805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51228459859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89559959 + ... + 89560530.

It is an arithmetic number, because the mean of its divisors is an integer number (5642295435).

Almost surely, 2^51228459854 is an apocalyptic number.

51228459854 is a deficient number, since it is larger than the sum of its proper divisors (39048267106).

51228459854 is a wasteful number, since it uses less digits than its factorization.

51228459854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179120515.

The product of its digits is 4608000, while the sum is 53.

The spelling of 51228459854 in words is "fifty-one billion, two hundred twenty-eight million, four hundred fifty-nine thousand, eight hundred fifty-four".