51513260105 has 8 divisors (see below), whose sum is σ = 61818979200. Its totient is φ = 41208563376.

The previous prime is 51513260063. The next prime is 51513260111. The reversal of 51513260105 is 50106231515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51513260105 - 2²⁴ = 51496482889 is a prime.

It is a super-2 number, since 2×51513260105² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139985 + ... + 350174.

It is an arithmetic number, because the mean of its divisors is an integer number (7727372400).

Almost surely, 2^51513260105 is an apocalyptic number.

It is an amenable number.

51513260105 is a deficient number, since it is larger than the sum of its proper divisors (10305719095).

51513260105 is a wasteful number, since it uses less digits than its factorization.

51513260105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511183.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 51513260105 in words is "fifty-one billion, five hundred thirteen million, two hundred sixty thousand, one hundred five".