10550050561 has 4 divisors (see below), whose sum is σ = 11105316400. Its totient is φ = 9994784724.

The previous prime is 10550050549. The next prime is 10550050607. The reversal of 10550050561 is 16505005501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10550050561 - 2⁵ = 10550050529 is a prime.

It is a super-3 number, since 3×10550050561³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10550050061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277632891 + ... + 277632928.

It is an arithmetic number, because the mean of its divisors is an integer number (2776329100).

Almost surely, 2^10550050561 is an apocalyptic number.

It is an amenable number.

10550050561 is a deficient number, since it is larger than the sum of its proper divisors (555265839).

10550050561 is an equidigital number, since it uses as much as digits as its factorization.

10550050561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555265838.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 10550050561 in words is "ten billion, five hundred fifty million, fifty thousand, five hundred sixty-one".