55325525309 has 2 divisors, whose sum is σ = 55325525310. Its totient is φ = 55325525308.

The previous prime is 55325525293. The next prime is 55325525429. The reversal of 55325525309 is 90352552355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45711722809 + 9613802500 = 213803^2 + 98050^2 .

It is a cyclic number.

It is not a de Polignac number, because 55325525309 - 2⁴ = 55325525293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55325525309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55325525209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27662762654 + 27662762655.

It is an arithmetic number, because the mean of its divisors is an integer number (27662762655).

Almost surely, 2^55325525309 is an apocalyptic number.

It is an amenable number.

55325525309 is a deficient number, since it is larger than the sum of its proper divisors (1).

55325525309 is an equidigital number, since it uses as much as digits as its factorization.

55325525309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1012500, while the sum is 44.

The spelling of 55325525309 in words is "fifty-five billion, three hundred twenty-five million, five hundred twenty-five thousand, three hundred nine".