55279452289 has 2 divisors, whose sum is σ = 55279452290. Its totient is φ = 55279452288.

The previous prime is 55279452257. The next prime is 55279452307. The reversal of 55279452289 is 98225497255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45457651264 + 9821801025 = 213208^2 + 99105^2 .

It is a cyclic number.

It is not a de Polignac number, because 55279452289 - 2⁵ = 55279452257 is a prime.

It is not a weakly prime, because it can be changed into another prime (55279452589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27639726144 + 27639726145.

It is an arithmetic number, because the mean of its divisors is an integer number (27639726145).

Almost surely, 2^55279452289 is an apocalyptic number.

It is an amenable number.

55279452289 is a deficient number, since it is larger than the sum of its proper divisors (1).

55279452289 is an equidigital number, since it uses as much as digits as its factorization.

55279452289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144000, while the sum is 58.

The spelling of 55279452289 in words is "fifty-five billion, two hundred seventy-nine million, four hundred fifty-two thousand, two hundred eighty-nine".