2055986420 has 18 divisors (see below), whose sum is σ = 4317997362. Its totient is φ = 822313456.

The previous prime is 2055986329. The next prime is 2055986459. The reversal of 2055986420 is 246895502.

It can be written as a sum of positive squares in only one way, i.e., 1644789136 + 411197284 = 40556^2 + 20278^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197711 + ... + 207849.

Almost surely, 2^2055986420 is an apocalyptic number.

2055986420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2055986420 is an abundant number, since it is smaller than the sum of its proper divisors (2262010942).

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

2055986420 is an frugal number, since it uses more digits than its factorization.

2055986420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20287 (or 10146 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 2055986420 is about 45342.9864477407. The cubic root of 2055986420 is about 1271.5694363377.

The spelling of 2055986420 in words is "two billion, fifty-five million, nine hundred eighty-six thousand, four hundred twenty".