55038351871873 has 2 divisors, whose sum is σ = 55038351871874. Its totient is φ = 55038351871872.

The previous prime is 55038351871813. The next prime is 55038351871903. The reversal of 55038351871873 is 37817815383055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29239185284929 + 25799166586944 = 5407327^2 + 5079288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55038351871873 is a prime.

It is not a weakly prime, because it can be changed into another prime (55038351871813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27519175935936 + 27519175935937.

It is an arithmetic number, because the mean of its divisors is an integer number (27519175935937).

Almost surely, 2^{55038351871873} is an apocalyptic number.

It is an amenable number.

55038351871873 is a deficient number, since it is larger than the sum of its proper divisors (1).

55038351871873 is an equidigital number, since it uses as much as digits as its factorization.

55038351871873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672000, while the sum is 64.

The spelling of 55038351871873 in words is "fifty-five trillion, thirty-eight billion, three hundred fifty-one million, eight hundred seventy-one thousand, eight hundred seventy-three".