51000033355 has 16 divisors (see below), whose sum is σ = 62467084800. Its totient is φ = 39960436320.

The previous prime is 51000033317. The next prime is 51000033361. The reversal of 51000033355 is 55333000015.

It is a happy number.

It is not a de Polignac number, because 51000033355 - 2²³ = 50991644747 is a prime.

It is a super-2 number, since 2×51000033355² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239025 + ... + 398914.

It is an arithmetic number, because the mean of its divisors is an integer number (3904192800).

Almost surely, 2^51000033355 is an apocalyptic number.

51000033355 is a deficient number, since it is larger than the sum of its proper divisors (11467051445).

51000033355 is a wasteful number, since it uses less digits than its factorization.

51000033355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638274.

The product of its (nonzero) digits is 3375, while the sum is 25.

The spelling of 51000033355 in words is "fifty-one billion, thirty-three thousand, three hundred fifty-five".