51516600055 has 16 divisors (see below), whose sum is σ = 61993103040. Its totient is φ = 41097964032.

The previous prime is 51516599951. The next prime is 51516600061. The reversal of 51516600055 is 55000661515.

It is a cyclic number.

It is not a de Polignac number, because 51516600055 - 2²¹ = 51514502903 is a prime.

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, 3293062 + ... + 3308668.

It is an arithmetic number, because the mean of its divisors is an integer number (3874568940).

Almost surely, 2^51516600055 is an apocalyptic number.

51516600055 is a deficient number, since it is larger than the sum of its proper divisors (10476502985).

51516600055 is a wasteful number, since it uses less digits than its factorization.

51516600055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17418.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 51516600055 in words is "fifty-one billion, five hundred sixteen million, six hundred thousand, fifty-five".