2755520 has 56 divisors (see below), whose sum is σ = 6705600. Its totient is φ = 1078272.

The previous prime is 2755499. The next prime is 2755541. The reversal of 2755520 is 255572.

It is an interprime number because it is at equal distance from previous prime (2755499) and next prime (2755541).

It is a self number, because there is not a number n which added to its sum of digits gives 2755520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25226 + ... + 25334.

2^2755520 is an apocalyptic number.

2755520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2755520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3352800).

2755520 is an abundant number, since it is smaller than the sum of its proper divisors (3950080).

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

2755520 is a wasteful number, since it uses less digits than its factorization.

2755520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 2755520 is about 1659.9759034396. The cubic root of 2755520 is about 140.1956448336.

The spelling of 2755520 in words is "two million, seven hundred fifty-five thousand, five hundred twenty".