55511106105401 has 2 divisors, whose sum is σ = 55511106105402. Its totient is φ = 55511106105400.

The previous prime is 55511106105283. The next prime is 55511106105437. The reversal of 55511106105401 is 10450160111555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55436959360000 + 74146745401 = 7445600^2 + 272299^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55511106105401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (55511106101401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27755553052700 + 27755553052701.

It is an arithmetic number, because the mean of its divisors is an integer number (27755553052701).

Almost surely, 2^{55511106105401} is an apocalyptic number.

It is an amenable number.

55511106105401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55511106105401 is an equidigital number, since it uses as much as digits as its factorization.

55511106105401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15000, while the sum is 35.

Adding to 55511106105401 its reverse (10450160111555), we get a palindrome (65961266216956).

The spelling of 55511106105401 in words is "fifty-five trillion, five hundred eleven billion, one hundred six million, one hundred five thousand, four hundred one".