51000005001055 has 32 divisors (see below), whose sum is σ = 70808482395648. Its totient is φ = 34896653404800.

The previous prime is 51000005001047. The next prime is 51000005001067. The reversal of 51000005001055 is 55010050000015.

It is not a de Polignac number, because 51000005001055 - 2³ = 51000005001047 is a prime.

It is a super-3 number, since 3×51000005001055³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 330383569 + ... + 330537898.

It is an arithmetic number, because the mean of its divisors is an integer number (2212765074864).

Almost surely, 2^{51000005001055} is an apocalyptic number.

51000005001055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51000005001055 is a deficient number, since it is larger than the sum of its proper divisors (19808477394593).

51000005001055 is a wasteful number, since it uses less digits than its factorization.

51000005001055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660921567.

The product of its (nonzero) digits is 625, while the sum is 22.

The spelling of 51000005001055 in words is "fifty-one trillion, five million, one thousand, fifty-five".