51086517142541 has 2 divisors, whose sum is σ = 51086517142542. Its totient is φ = 51086517142540.

The previous prime is 51086517142501. The next prime is 51086517142547. The reversal of 51086517142541 is 14524171568015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50021967809641 + 1064549332900 = 7072621^2 + 1031770^2 .

It is a cyclic number.

It is not a de Polignac number, because 51086517142541 - 2¹⁸ = 51086516880397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51086517142541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51086517142547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25543258571270 + 25543258571271.

It is an arithmetic number, because the mean of its divisors is an integer number (25543258571271).

Almost surely, 2^{51086517142541} is an apocalyptic number.

It is an amenable number.

51086517142541 is a deficient number, since it is larger than the sum of its proper divisors (1).

51086517142541 is an equidigital number, since it uses as much as digits as its factorization.

51086517142541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344000, while the sum is 50.

The spelling of 51086517142541 in words is "fifty-one trillion, eighty-six billion, five hundred seventeen million, one hundred forty-two thousand, five hundred forty-one".