51555142915338 has 8 divisors (see below), whose sum is σ = 103110285830688. Its totient is φ = 17185047638444.

The previous prime is 51555142915337. The next prime is 51555142915363. The reversal of 51555142915338 is 83351924155515.

It is a sphenic number, since it is the product of 3 distinct primes.

51555142915338 is an admirable number.

It is a super-3 number, since 3×51555142915338³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (51555142915337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4296261909606 + ... + 4296261909617.

It is an arithmetic number, because the mean of its divisors is an integer number (12888785728836).

Almost surely, 2^{51555142915338} is an apocalyptic number.

51555142915338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51555142915338 is a wasteful number, since it uses less digits than its factorization.

51555142915338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8592523819228.

The product of its digits is 16200000, while the sum is 57.

The spelling of 51555142915338 in words is "fifty-one trillion, five hundred fifty-five billion, one hundred forty-two million, nine hundred fifteen thousand, three hundred thirty-eight".