55111263124601 has 2 divisors, whose sum is σ = 55111263124602. Its totient is φ = 55111263124600.

The previous prime is 55111263124597. The next prime is 55111263124639. The reversal of 55111263124601 is 10642136211155.

It is an a-pointer prime, because the next prime (55111263124639) can be obtained adding 55111263124601 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29163456102400 + 25947807022201 = 5400320^2 + 5093899^2 .

It is a cyclic number.

It is not a de Polignac number, because 55111263124601 - 2² = 55111263124597 is a prime.

It is not a weakly prime, because it can be changed into another prime (55111263124681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27555631562300 + 27555631562301.

It is an arithmetic number, because the mean of its divisors is an integer number (27555631562301).

Almost surely, 2^{55111263124601} is an apocalyptic number.

It is an amenable number.

55111263124601 is a deficient number, since it is larger than the sum of its proper divisors (1).

55111263124601 is an equidigital number, since it uses as much as digits as its factorization.

55111263124601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

Adding to 55111263124601 its reverse (10642136211155), we get a palindrome (65753399335756).

The spelling of 55111263124601 in words is "fifty-five trillion, one hundred eleven billion, two hundred sixty-three million, one hundred twenty-four thousand, six hundred one".