2055693220 has 96 divisors (see below), whose sum is σ = 5232165120. Its totient is φ = 662722560.

The previous prime is 2055693203. The next prime is 2055693221. The reversal of 2055693220 is 223965502.

It is a happy number.

It is a super-2 number, since 2×2055693220² = 8451749229507936800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2055693221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361600 + ... + 367240.

It is an arithmetic number, because the mean of its divisors is an integer number (54501720).

Almost surely, 2^2055693220 is an apocalyptic number.

2055693220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2055693220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2616082560).

2055693220 is an abundant number, since it is smaller than the sum of its proper divisors (3176471900).

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

2055693220 is a wasteful number, since it uses less digits than its factorization.

2055693220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813 (or 5811 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 2055693220 is about 45339.7531973874. The cubic root of 2055693220 is about 1271.5089881624.

The spelling of 2055693220 in words is "two billion, fifty-five million, six hundred ninety-three thousand, two hundred twenty".