5505559961 has 8 divisors (see below), whose sum is σ = 6006790848. Its totient is φ = 5004450000.

The previous prime is 5505559937. The next prime is 5505559981. The reversal of 5505559961 is 1699555055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5505559961 - 2¹⁰ = 5505558937 is a prime.

It is a super-2 number, since 2×5505559961² = 60622380968332643042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5505559921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83636 + ... + 134186.

It is an arithmetic number, because the mean of its divisors is an integer number (750848856).

Almost surely, 2^5505559961 is an apocalyptic number.

It is an amenable number.

5505559961 is a deficient number, since it is larger than the sum of its proper divisors (501230887).

5505559961 is a wasteful number, since it uses less digits than its factorization.

5505559961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60463.

The product of its (nonzero) digits is 1518750, while the sum is 50.

The square root of 5505559961 is about 74199.4606516786. The cubic root of 5505559961 is about 1765.7687733775.

The spelling of 5505559961 in words is "five billion, five hundred five million, five hundred fifty-nine thousand, nine hundred sixty-one".