51560056155 has 16 divisors (see below), whose sum is σ = 82514200320. Its totient is φ = 27492659808.

The previous prime is 51560056153. The next prime is 51560056213. The reversal of 51560056155 is 55165006515.

It is not a de Polignac number, because 51560056155 - 2¹ = 51560056153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51560056151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306265 + ... + 443754.

It is an arithmetic number, because the mean of its divisors is an integer number (5157137520).

Almost surely, 2^51560056155 is an apocalyptic number.

51560056155 is a deficient number, since it is larger than the sum of its proper divisors (30954144165).

51560056155 is a wasteful number, since it uses less digits than its factorization.

51560056155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754610.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 51560056155 in words is "fifty-one billion, five hundred sixty million, fifty-six thousand, one hundred fifty-five".