51002055 has 48 divisors (see below), whose sum is σ = 98760480. Its totient is φ = 25100928.

The previous prime is 51002051. The next prime is 51002087. The reversal of 51002055 is 55020015.

51002055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51002055 - 2² = 51002051 is a prime.

It is a super-3 number, since 3×51002055³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51002051) 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 47 ways as a sum of consecutive naturals, for example, 14181 + ... + 17409.

It is an arithmetic number, because the mean of its divisors is an integer number (2057510).

Almost surely, 2^51002055 is an apocalyptic number.

51002055 is a deficient number, since it is larger than the sum of its proper divisors (47758425).

51002055 is a wasteful number, since it uses less digits than its factorization.

51002055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262 (or 3250 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 51002055 is about 7141.5723058721. The cubic root of 51002055 is about 370.8479577899.

The spelling of 51002055 in words is "fifty-one million, two thousand, fifty-five".