51005056105 has 16 divisors (see below), whose sum is σ = 64370110464. Its totient is φ = 38722622400.

The previous prime is 51005056099. The next prime is 51005056129. The reversal of 51005056105 is 50165050015.

It is not a de Polignac number, because 51005056105 - 2¹³ = 51005047913 is a prime.

It is a Duffinian 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, 1731546 + ... + 1760755.

It is an arithmetic number, because the mean of its divisors is an integer number (4023131904).

Almost surely, 2^51005056105 is an apocalyptic number.

It is an amenable number.

51005056105 is a deficient number, since it is larger than the sum of its proper divisors (13365054359).

51005056105 is a wasteful number, since it uses less digits than its factorization.

51005056105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492456.

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

The spelling of 51005056105 in words is "fifty-one billion, five million, fifty-six thousand, one hundred five".