5550550061 has 4 divisors (see below), whose sum is σ = 6343485792. Its totient is φ = 4757614332.

The previous prime is 5550550001. The next prime is 5550550063. The reversal of 5550550061 is 1600550555.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1600550555 = 5 ⋅320110111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5550550061 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5550550063) 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 in 3 ways as a sum of consecutive naturals, for example, 396467855 + ... + 396467868.

It is an arithmetic number, because the mean of its divisors is an integer number (1585871448).

Almost surely, 2^5550550061 is an apocalyptic number.

It is an amenable number.

5550550061 is a deficient number, since it is larger than the sum of its proper divisors (792935731).

5550550061 is an equidigital number, since it uses as much as digits as its factorization.

5550550061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792935730.

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 5550550061 is about 74502.0138049972. The cubic root of 5550550061 is about 1770.5655423068.

The spelling of 5550550061 in words is "five billion, five hundred fifty million, five hundred fifty thousand, sixty-one".