2775215248 has 50 divisors (see below), whose sum is σ = 5826004654. Its totient is φ = 1280657664.

The previous prime is 2775215207. The next prime is 2775215281. The reversal of 2775215248 is 8425125772.

It can be written as a sum of positive squares in 5 ways, for example, as 1798777744 + 976437504 = 42412^2 + 31248^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 453940 + ... + 460012.

Almost surely, 2^2775215248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2775215248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2913002327).

2775215248 is an abundant number, since it is smaller than the sum of its proper divisors (3050789406).

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

2775215248 is an frugal number, since it uses more digits than its factorization.

2775215248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6133 (or 6088 counting only the distinct ones).

The product of its digits is 313600, while the sum is 43.

The square root of 2775215248 is about 52680.3117682498. The cubic root of 2775215248 is about 1405.2887115812.

The spelling of 2775215248 in words is "two billion, seven hundred seventy-five million, two hundred fifteen thousand, two hundred forty-eight".