51512512101 has 16 divisors (see below), whose sum is σ = 69164403264. Its totient is φ = 34101817344.

The previous prime is 51512512087. The next prime is 51512512127. The reversal of 51512512101 is 10121521515.

It is not a de Polignac number, because 51512512101 - 2¹⁰ = 51512511077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51512512151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225765 + ... + 392421.

It is an arithmetic number, because the mean of its divisors is an integer number (4322775204).

Almost surely, 2^51512512101 is an apocalyptic number.

It is an amenable number.

51512512101 is a deficient number, since it is larger than the sum of its proper divisors (17651891163).

51512512101 is a wasteful number, since it uses less digits than its factorization.

51512512101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167380.

The product of its (nonzero) digits is 500, while the sum is 24.

The spelling of 51512512101 in words is "fifty-one billion, five hundred twelve million, five hundred twelve thousand, one hundred one".