51555160011002 has 8 divisors (see below), whose sum is σ = 77333866979796. Its totient is φ = 25777204351072.

The previous prime is 51555160011001. The next prime is 51555160011079. The reversal of 51555160011002 is 20011006155515.

It can be written as a sum of positive squares in 2 ways, for example, as 51088314416881 + 466845594121 = 7147609^2 + 683261^2 .

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

It is a super-2 number, since 2×51555160011002² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51555160011002.

It is not an unprimeable number, because it can be changed into a prime (51555160011001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187655633 + ... + 187930164.

Almost surely, 2^{51555160011002} is an apocalyptic number.

51555160011002 is a deficient number, since it is larger than the sum of its proper divisors (25778706968794).

51555160011002 is a wasteful number, since it uses less digits than its factorization.

51555160011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375654432.

The product of its (nonzero) digits is 7500, while the sum is 32.

Adding to 51555160011002 its reverse (20011006155515), we get a palindrome (71566166166517).

The spelling of 51555160011002 in words is "fifty-one trillion, five hundred fifty-five billion, one hundred sixty million, eleven thousand, two".