2055647280 has 80 divisors (see below), whose sum is σ = 6438275424. Its totient is φ = 542515200.

The previous prime is 2055647267. The next prime is 2055647291. The reversal of 2055647280 is 827465502.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20871 + ... + 67430.

Almost surely, 2^2055647280 is an apocalyptic number.

2055647280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2055647280 is an abundant number, since it is smaller than the sum of its proper divisors (4382628144).

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

2055647280 is a wasteful number, since it uses less digits than its factorization.

2055647280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88414 (or 88408 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 2055647280 is about 45339.2465751252. The cubic root of 2055647280 is about 1271.4995163279.

The spelling of 2055647280 in words is "two billion, fifty-five million, six hundred forty-seven thousand, two hundred eighty".