51513616230 has 32 divisors (see below), whose sum is σ = 124726781664. Its totient is φ = 13615397376.

The previous prime is 51513616213. The next prime is 51513616243. The reversal of 51513616230 is 3261631515.

It is a junction number, because it is equal to n+sod(n) for n = 51513616191 and 51513616200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7594489 + ... + 7601268.

It is an arithmetic number, because the mean of its divisors is an integer number (3897711927).

Almost surely, 2^51513616230 is an apocalyptic number.

51513616230 is an abundant number, since it is smaller than the sum of its proper divisors (73213165434).

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

51513616230 is a wasteful number, since it uses less digits than its factorization.

51513616230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15195880.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 51513616230 in words is "fifty-one billion, five hundred thirteen million, six hundred sixteen thousand, two hundred thirty".