55489148153869 has 2 divisors, whose sum is σ = 55489148153870. Its totient is φ = 55489148153868.

The previous prime is 55489148153779. The next prime is 55489148153963. The reversal of 55489148153869 is 96835184198455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43082656532644 + 12406491621225 = 6563738^2 + 3522285^2 .

It is a cyclic number.

It is not a de Polignac number, because 55489148153869 - 2¹⁵ = 55489148121101 is a prime.

It is a super-2 number, since 2×55489148153869² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55489148153795 and 55489148153804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55489148153069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27744574076934 + 27744574076935.

It is an arithmetic number, because the mean of its divisors is an integer number (27744574076935).

Almost surely, 2^{55489148153869} is an apocalyptic number.

It is an amenable number.

55489148153869 is a deficient number, since it is larger than the sum of its proper divisors (1).

55489148153869 is an equidigital number, since it uses as much as digits as its factorization.

55489148153869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992000, while the sum is 76.

The spelling of 55489148153869 in words is "fifty-five trillion, four hundred eighty-nine billion, one hundred forty-eight million, one hundred fifty-three thousand, eight hundred sixty-nine".