3555450220 has 48 divisors (see below), whose sum is σ = 8542578240. Its totient is φ = 1217654784.

The previous prime is 3555450211. The next prime is 3555450247. The reversal of 3555450220 is 220545553.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116392 + ... + 143728.

It is an arithmetic number, because the mean of its divisors is an integer number (177970380).

Almost surely, 2^3555450220 is an apocalyptic number.

It is an amenable number.

3555450220 is an abundant number, since it is smaller than the sum of its proper divisors (4987128020).

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

3555450220 is a wasteful number, since it uses less digits than its factorization.

3555450220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28282 (or 28280 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 3555450220 is about 59627.5961279675. The cubic root of 3555450220 is about 1526.2705842001.

Adding to 3555450220 its reverse (220545553), we get a palindrome (3775995773).

The spelling of 3555450220 in words is "three billion, five hundred fifty-five million, four hundred fifty thousand, two hundred twenty".