10550550809 has 2 divisors, whose sum is σ = 10550550810. Its totient is φ = 10550550808.

The previous prime is 10550550763. The next prime is 10550550811. The reversal of 10550550809 is 90805505501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9210624784 + 1339926025 = 95972^2 + 36605^2 .

It is a cyclic number.

It is not a de Polignac number, because 10550550809 - 2²⁰ = 10549502233 is a prime.

It is a super-2 number, since 2×10550550809² (a number of 21 digits) contains 22 as substring.

Together with 10550550811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10550550889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275275404 + 5275275405.

It is an arithmetic number, because the mean of its divisors is an integer number (5275275405).

Almost surely, 2^10550550809 is an apocalyptic number.

It is an amenable number.

10550550809 is a deficient number, since it is larger than the sum of its proper divisors (1).

10550550809 is an equidigital number, since it uses as much as digits as its factorization.

10550550809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 38.

The spelling of 10550550809 in words is "ten billion, five hundred fifty million, five hundred fifty thousand, eight hundred nine".