2755530 has 48 divisors (see below), whose sum is σ = 7590024. Its totient is φ = 691200.

The previous prime is 2755499. The next prime is 2755541. The reversal of 2755530 is 355572.

It can be written as a sum of positive squares in 4 ways, for example, as 2064969 + 690561 = 1437^2 + 831^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2755494 and 2755503.

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, 630 + ... + 2430.

2^2755530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2755530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3795012).

2755530 is an abundant number, since it is smaller than the sum of its proper divisors (4834494).

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

2755530 is a wasteful number, since it uses less digits than its factorization.

2755530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831 (or 1828 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 2755530 is about 1659.9789155287. The cubic root of 2755530 is about 140.1958144270.

The spelling of 2755530 in words is "two million, seven hundred fifty-five thousand, five hundred thirty".