55102117361 has 2 divisors, whose sum is σ = 55102117362. Its totient is φ = 55102117360.

The previous prime is 55102117333. The next prime is 55102117363. The reversal of 55102117361 is 16371120155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52112214961 + 2989902400 = 228281^2 + 54680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55102117361 is a prime.

Together with 55102117363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55102117363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27551058680 + 27551058681.

It is an arithmetic number, because the mean of its divisors is an integer number (27551058681).

Almost surely, 2^55102117361 is an apocalyptic number.

It is an amenable number.

55102117361 is a deficient number, since it is larger than the sum of its proper divisors (1).

55102117361 is an equidigital number, since it uses as much as digits as its factorization.

55102117361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 32.

The spelling of 55102117361 in words is "fifty-five billion, one hundred two million, one hundred seventeen thousand, three hundred sixty-one".