51101011000551 has 16 divisors (see below), whose sum is σ = 68199981920640. Its totient is φ = 34034691397920.

The previous prime is 51101011000547. The next prime is 51101011000561. The reversal of 51101011000551 is 15500011010115.

It is not a de Polignac number, because 51101011000551 - 2² = 51101011000547 is a prime.

It is a super-2 number, since 2×51101011000551² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51101011000531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360763620 + ... + 360905238.

It is an arithmetic number, because the mean of its divisors is an integer number (4262498870040).

Almost surely, 2^{51101011000551} is an apocalyptic number.

51101011000551 is a deficient number, since it is larger than the sum of its proper divisors (17098970920089).

51101011000551 is a wasteful number, since it uses less digits than its factorization.

51101011000551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256046.

The product of its (nonzero) digits is 125, while the sum is 21.

Adding to 51101011000551 its reverse (15500011010115), we get a palindrome (66601022010666).

The spelling of 51101011000551 in words is "fifty-one trillion, one hundred one billion, eleven million, five hundred fifty-one", and thus it is an aban number.