55201002209 has 16 divisors (see below), whose sum is σ = 59074391376. Its totient is φ = 51397632000.

The previous prime is 55201002203. The next prime is 55201002211. The reversal of 55201002209 is 90220010255.

It can be written as a sum of positive squares in 8 ways, for example, as 2348371600 + 52852630609 = 48460^2 + 229897^2 .

It is a cyclic number.

It is not a de Polignac number, because 55201002209 - 2¹⁶ = 55200936673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55201002203) 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 in 15 ways as a sum of consecutive naturals, for example, 5438279 + ... + 5448419.

It is an arithmetic number, because the mean of its divisors is an integer number (3692149461).

Almost surely, 2^55201002209 is an apocalyptic number.

It is an amenable number.

55201002209 is a deficient number, since it is larger than the sum of its proper divisors (3873389167).

55201002209 is a wasteful number, since it uses less digits than its factorization.

55201002209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13556.

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 55201002209 in words is "fifty-five billion, two hundred one million, two thousand, two hundred nine".