51559086628 has 24 divisors (see below), whose sum is σ = 103128282432. Its totient is φ = 22094585184.

The previous prime is 51559086619. The next prime is 51559086629. The reversal of 51559086628 is 82668095515.

It is not an unprimeable number, because it can be changed into a prime (51559086629) 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, 219051 + ... + 388717.

It is an arithmetic number, because the mean of its divisors is an integer number (4297011768).

Almost surely, 2^51559086628 is an apocalyptic number.

It is an amenable number.

51559086628 is an abundant number, since it is smaller than the sum of its proper divisors (51569195804).

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

51559086628 is a wasteful number, since it uses less digits than its factorization.

51559086628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180531 (or 180529 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 55.

The spelling of 51559086628 in words is "fifty-one billion, five hundred fifty-nine million, eighty-six thousand, six hundred twenty-eight".