3055511220 has 72 divisors (see below), whose sum is σ = 9029480544. Its totient is φ = 771913152.

The previous prime is 3055511213. The next prime is 3055511257. The reversal of 3055511220 is 221155503.

It is a happy number.

It is a super-2 number, since 2×3055511220² = 18672297631091776800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48874 + ... + 92193.

It is an arithmetic number, because the mean of its divisors is an integer number (125409452).

Almost surely, 2^3055511220 is an apocalyptic number.

3055511220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3055511220 is an abundant number, since it is smaller than the sum of its proper divisors (5973969324).

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

3055511220 is a wasteful number, since it uses less digits than its factorization.

3055511220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141117 (or 141096 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 3055511220 is about 55276.6788076129. The cubic root of 3055511220 is about 1451.0909301059.

Adding to 3055511220 its reverse (221155503), we get a palindrome (3276666723).

The spelling of 3055511220 in words is "three billion, fifty-five million, five hundred eleven thousand, two hundred twenty".