4550055440 has 80 divisors (see below), whose sum is σ = 12801359232. Its totient is φ = 1468250112.

The previous prime is 4550055407. The next prime is 4550055443. The reversal of 4550055440 is 445500554.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 4550055397 and 4550055406.

It is not an unprimeable number, because it can be changed into a prime (4550055443) 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 15 ways as a sum of consecutive naturals, for example, 229454 + ... + 248493.

Almost surely, 2^4550055440 is an apocalyptic number.

4550055440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4550055440 is an abundant number, since it is smaller than the sum of its proper divisors (8251303792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4550055440 is a wasteful number, since it uses less digits than its factorization.

4550055440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477984 (or 477978 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 4550055440 is about 67454.0987635296. The cubic root of 4550055440 is about 1657.0625265120.

Adding to 4550055440 its reverse (445500554), we get a palindrome (4995555994).

The spelling of 4550055440 in words is "four billion, five hundred fifty million, fifty-five thousand, four hundred forty".