51105000505055 has 16 divisors (see below), whose sum is σ = 70088405920320. Its totient is φ = 35042654875392.

The previous prime is 51105000505007. The next prime is 51105000505067. The reversal of 51105000505055 is 55050500050115.

It is a cyclic number.

It is not a de Polignac number, because 51105000505055 - 2¹⁰ = 51105000504031 is a prime.

It is a super-2 number, since 2×51105000505055² (a number of 28 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 15 ways as a sum of consecutive naturals, for example, 14516420 + ... + 17690009.

It is an arithmetic number, because the mean of its divisors is an integer number (4380525370020).

Almost surely, 2^{51105000505055} is an apocalyptic number.

51105000505055 is a deficient number, since it is larger than the sum of its proper divisors (18983405415265).

51105000505055 is a wasteful number, since it uses less digits than its factorization.

51105000505055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32251778.

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 51105000505055 in words is "fifty-one trillion, one hundred five billion, five hundred five thousand, fifty-five".