2655920 has 20 divisors (see below), whose sum is σ = 6175200. Its totient is φ = 1062336.

The previous prime is 2655911. The next prime is 2655929. The reversal of 2655920 is 295562.

It is an interprime number because it is at equal distance from previous prime (2655911) and next prime (2655929).

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×2655920² = 14107822092800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2655929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16520 + ... + 16679.

It is an arithmetic number, because the mean of its divisors is an integer number (308760).

2^2655920 is an apocalyptic number.

2655920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2655920 is an abundant number, since it is smaller than the sum of its proper divisors (3519280).

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

2655920 is a wasteful number, since it uses less digits than its factorization.

2655920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33212 (or 33206 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 2655920 is about 1629.6993587776. The cubic root of 2655920 is about 138.4857210057.

The spelling of 2655920 in words is "two million, six hundred fifty-five thousand, nine hundred twenty".