55500549506 has 4 divisors (see below), whose sum is σ = 83250824262. Its totient is φ = 27750274752.

The previous prime is 55500549493. The next prime is 55500549521. The reversal of 55500549506 is 60594500555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60594500555 = 5 ⋅12118900111.

It can be written as a sum of positive squares in only one way, i.e., 31369723225 + 24130826281 = 177115^2 + 155341^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13875137375 + ... + 13875137378.

Almost surely, 2^55500549506 is an apocalyptic number.

55500549506 is a deficient number, since it is larger than the sum of its proper divisors (27750274756).

55500549506 is a wasteful number, since it uses less digits than its factorization.

55500549506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27750274755.

The product of its (nonzero) digits is 675000, while the sum is 44.

The spelling of 55500549506 in words is "fifty-five billion, five hundred million, five hundred forty-nine thousand, five hundred six".