2755612880 has 30 divisors (see below), whose sum is σ = 6407891766. Its totient is φ = 1102057344.

The previous prime is 2755612831. The next prime is 2755612889. The reversal of 2755612880 is 882165572.

It can be written as a sum of positive squares in 3 ways, for example, as 60341824 + 2695271056 = 7768^2 + 51916^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2755612889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 466586 + ... + 472454.

Almost surely, 2^2755612880 is an apocalyptic number.

2755612880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2755612880 is an abundant number, since it is smaller than the sum of its proper divisors (3652278886).

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

2755612880 is an frugal number, since it uses more digits than its factorization.

2755612880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11751 (or 5876 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 2755612880 is about 52493.9318397851. The cubic root of 2755612880 is about 1401.9722000209.

The spelling of 2755612880 in words is "two billion, seven hundred fifty-five million, six hundred twelve thousand, eight hundred eighty".