51105511095 has 16 divisors (see below), whose sum is σ = 86578748640. Its totient is φ = 25652962304.

The previous prime is 51105511091. The next prime is 51105511097. The reversal of 51105511095 is 59011550115.

It is a cyclic number.

It is not a de Polignac number, because 51105511095 - 2² = 51105511091 is a prime.

It is a super-2 number, since 2×51105511095² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51105511091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100206630 + ... + 100207139.

It is an arithmetic number, because the mean of its divisors is an integer number (5411171790).

Almost surely, 2^51105511095 is an apocalyptic number.

51105511095 is a deficient number, since it is larger than the sum of its proper divisors (35473237545).

51105511095 is a wasteful number, since it uses less digits than its factorization.

51105511095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200413794.

The product of its (nonzero) digits is 5625, while the sum is 33.

The spelling of 51105511095 in words is "fifty-one billion, one hundred five million, five hundred eleven thousand, ninety-five".