55207525889 has 2 divisors, whose sum is σ = 55207525890. Its totient is φ = 55207525888.

The previous prime is 55207525859. The next prime is 55207525897. The reversal of 55207525889 is 98852570255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54339339664 + 868186225 = 233108^2 + 29465^2 .

It is a cyclic number.

It is not a de Polignac number, because 55207525889 - 2²⁴ = 55190748673 is a prime.

It is not a weakly prime, because it can be changed into another prime (55207525819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27603762944 + 27603762945.

It is an arithmetic number, because the mean of its divisors is an integer number (27603762945).

Almost surely, 2^55207525889 is an apocalyptic number.

It is an amenable number.

55207525889 is a deficient number, since it is larger than the sum of its proper divisors (1).

55207525889 is an equidigital number, since it uses as much as digits as its factorization.

55207525889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080000, while the sum is 56.

The spelling of 55207525889 in words is "fifty-five billion, two hundred seven million, five hundred twenty-five thousand, eight hundred eighty-nine".