51342554421061 has 2 divisors, whose sum is σ = 51342554421062. Its totient is φ = 51342554421060.

The previous prime is 51342554420981. The next prime is 51342554421073. The reversal of 51342554421061 is 16012445524315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39504757248961 + 11837797172100 = 6285281^2 + 3440610^2 .

It is a cyclic number.

It is not a de Polignac number, because 51342554421061 - 2¹³ = 51342554412869 is a prime.

It is a super-2 number, since 2×51342554421061² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51342554420999 and 51342554421017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51342554424061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25671277210530 + 25671277210531.

It is an arithmetic number, because the mean of its divisors is an integer number (25671277210531).

Almost surely, 2^{51342554421061} is an apocalyptic number.

It is an amenable number.

51342554421061 is a deficient number, since it is larger than the sum of its proper divisors (1).

51342554421061 is an equidigital number, since it uses as much as digits as its factorization.

51342554421061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576000, while the sum is 43.

Adding to 51342554421061 its reverse (16012445524315), we get a palindrome (67354999945376).

The spelling of 51342554421061 in words is "fifty-one trillion, three hundred forty-two billion, five hundred fifty-four million, four hundred twenty-one thousand, sixty-one".