51630556220141 has 2 divisors, whose sum is σ = 51630556220142. Its totient is φ = 51630556220140.

The previous prime is 51630556220099. The next prime is 51630556220213. The reversal of 51630556220141 is 14102265503615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50375159222116 + 1255396998025 = 7097546^2 + 1120445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51630556220141 is a prime.

It is a super-2 number, since 2×51630556220141² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51630556220641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25815278110070 + 25815278110071.

It is an arithmetic number, because the mean of its divisors is an integer number (25815278110071).

Almost surely, 2^{51630556220141} is an apocalyptic number.

It is an amenable number.

51630556220141 is a deficient number, since it is larger than the sum of its proper divisors (1).

51630556220141 is an equidigital number, since it uses as much as digits as its factorization.

51630556220141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 51630556220141 in words is "fifty-one trillion, six hundred thirty billion, five hundred fifty-six million, two hundred twenty thousand, one hundred forty-one".