55552025569 has 2 divisors, whose sum is σ = 55552025570. Its totient is φ = 55552025568.

The previous prime is 55552025533. The next prime is 55552025593. The reversal of 55552025569 is 96552025555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29907205969 + 25644819600 = 172937^2 + 160140^2 .

It is a cyclic number.

It is not a de Polignac number, because 55552025569 - 2²⁹ = 55015154657 is a prime.

It is a super-2 number, since 2×55552025569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55552025069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27776012784 + 27776012785.

It is an arithmetic number, because the mean of its divisors is an integer number (27776012785).

Almost surely, 2^55552025569 is an apocalyptic number.

It is an amenable number.

55552025569 is a deficient number, since it is larger than the sum of its proper divisors (1).

55552025569 is an equidigital number, since it uses as much as digits as its factorization.

55552025569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3375000, while the sum is 49.

The spelling of 55552025569 in words is "fifty-five billion, five hundred fifty-two million, twenty-five thousand, five hundred sixty-nine".