2655630 has 48 divisors (see below), whose sum is σ = 7272720. Its totient is φ = 670464.

The previous prime is 2655623. The next prime is 2655643. The reversal of 2655630 is 365562.

2655630 is a `hidden beast` number, since 2 + 655 + 6 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2655594 and 2655603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 934 + ... + 2486.

It is an arithmetic number, because the mean of its divisors is an integer number (151515).

2^2655630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2655630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3636360).

2655630 is an abundant number, since it is smaller than the sum of its proper divisors (4617090).

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

2655630 is a wasteful number, since it uses less digits than its factorization.

2655630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 2655630 is about 1629.6103828830. The cubic root of 2655630 is about 138.4806804020.

The spelling of 2655630 in words is "two million, six hundred fifty-five thousand, six hundred thirty".