2055432220 has 48 divisors (see below), whose sum is σ = 4404583008. Its totient is φ = 805425920.

The previous prime is 2055432193. The next prime is 2055432227. The reversal of 2055432220 is 222345502.

It is a happy number.

It is a super-2 number, since 2×2055432220² = 8449603222028256800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055432227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028262 + ... + 1030258.

It is an arithmetic number, because the mean of its divisors is an integer number (91762146).

Almost surely, 2^2055432220 is an apocalyptic number.

2055432220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2055432220 is an abundant number, since it is smaller than the sum of its proper divisors (2349150788).

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

2055432220 is a wasteful number, since it uses less digits than its factorization.

2055432220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030 (or 3028 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 2055432220 is about 45336.8748371566. The cubic root of 2055432220 is about 1271.4551737299.

Adding to 2055432220 its reverse (222345502), we get a palindrome (2277777722).

The spelling of 2055432220 in words is "two billion, fifty-five million, four hundred thirty-two thousand, two hundred twenty".