51105050605 has 32 divisors (see below), whose sum is σ = 70830837504. Its totient is φ = 34672598016.

The previous prime is 51105050543. The next prime is 51105050617. The reversal of 51105050605 is 50605050115.

It is not a de Polignac number, because 51105050605 - 2¹¹ = 51105048557 is a prime.

It is a super-2 number, since 2×51105050605² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2310579 + ... + 2332591.

It is an arithmetic number, because the mean of its divisors is an integer number (2213463672).

Almost surely, 2^51105050605 is an apocalyptic number.

It is an amenable number.

51105050605 is a deficient number, since it is larger than the sum of its proper divisors (19725786899).

51105050605 is a wasteful number, since it uses less digits than its factorization.

51105050605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22725.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 51105050605 in words is "fifty-one billion, one hundred five million, fifty thousand, six hundred five".