55966361441 has 2 divisors, whose sum is σ = 55966361442. Its totient is φ = 55966361440.

The previous prime is 55966361417. The next prime is 55966361443. The reversal of 55966361441 is 14416366955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54980401441 + 985960000 = 234479^2 + 31400^2 .

It is a cyclic number.

It is not a de Polignac number, because 55966361441 - 2⁶ = 55966361377 is a prime.

It is a super-2 number, since 2×55966361441² (a number of 22 digits) contains 22 as substring.

Together with 55966361443, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55966361441.

It is not a weakly prime, because it can be changed into another prime (55966361443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27983180720 + 27983180721.

It is an arithmetic number, because the mean of its divisors is an integer number (27983180721).

Almost surely, 2^55966361441 is an apocalyptic number.

It is an amenable number.

55966361441 is a deficient number, since it is larger than the sum of its proper divisors (1).

55966361441 is an equidigital number, since it uses as much as digits as its factorization.

55966361441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 50.

The spelling of 55966361441 in words is "fifty-five billion, nine hundred sixty-six million, three hundred sixty-one thousand, four hundred forty-one".