51050005501 has 16 divisors (see below), whose sum is σ = 57819760128. Its totient is φ = 44652369600.

The previous prime is 51050005441. The next prime is 51050005561. The reversal of 51050005501 is 10550005015.

It is an interprime number because it is at equal distance from previous prime (51050005441) and next prime (51050005561).

It is a cyclic number.

It is not a de Polignac number, because 51050005501 - 2²³ = 51041616893 is a prime.

It is a super-2 number, since 2×51050005501² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51050005561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373686 + ... + 491671.

It is an arithmetic number, because the mean of its divisors is an integer number (3613735008).

Almost surely, 2^51050005501 is an apocalyptic number.

It is an amenable number.

51050005501 is a deficient number, since it is larger than the sum of its proper divisors (6769754627).

51050005501 is a wasteful number, since it uses less digits than its factorization.

51050005501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865572.

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

The spelling of 51050005501 in words is "fifty-one billion, fifty million, five thousand, five hundred one".