51000101055 has 24 divisors (see below), whose sum is σ = 93052817520. Its totient is φ = 25768471680.

The previous prime is 51000101039. The next prime is 51000101059. The reversal of 51000101055 is 55010100015.

51000101055 is a `hidden beast` number, since 510 + 0 + 0 + 101 + 0 + 55 = 666.

It is not a de Polignac number, because 51000101055 - 2⁴ = 51000101039 is a prime.

It is a super-2 number, since 2×51000101055² (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 (51000101059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29823766 + ... + 29825475.

It is an arithmetic number, because the mean of its divisors is an integer number (3877200730).

Almost surely, 2^51000101055 is an apocalyptic number.

51000101055 is a deficient number, since it is larger than the sum of its proper divisors (42052716465).

51000101055 is a wasteful number, since it uses less digits than its factorization.

51000101055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59649271 (or 59649268 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The spelling of 51000101055 in words is "fifty-one billion, one hundred one thousand, fifty-five".