51151154534401 has 2 divisors, whose sum is σ = 51151154534402. Its totient is φ = 51151154534400.

The previous prime is 51151154534399. The next prime is 51151154534419. The reversal of 51151154534401 is 10443545115115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49784595872400 + 1366558662001 = 7055820^2 + 1168999^2 .

It is a cyclic number.

It is not a de Polignac number, because 51151154534401 - 2¹ = 51151154534399 is a prime.

It is a super-2 number, since 2×51151154534401² (a number of 28 digits) contains 22 as substring.

Together with 51151154534399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51151154514401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25575577267200 + 25575577267201.

It is an arithmetic number, because the mean of its divisors is an integer number (25575577267201).

Almost surely, 2^{51151154534401} is an apocalyptic number.

It is an amenable number.

51151154534401 is a deficient number, since it is larger than the sum of its proper divisors (1).

51151154534401 is an equidigital number, since it uses as much as digits as its factorization.

51151154534401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120000, while the sum is 40.

Adding to 51151154534401 its reverse (10443545115115), we get a palindrome (61594699649516).

The spelling of 51151154534401 in words is "fifty-one trillion, one hundred fifty-one billion, one hundred fifty-four million, five hundred thirty-four thousand, four hundred one".