2750500000 has 84 divisors (see below), whose sum is σ = 6769952406. Its totient is φ = 1100000000.

The previous prime is 2750499991. The next prime is 2750500001. The reversal of 2750500000 is 50572.

It is a happy number.

It can be written as a sum of positive squares in 7 ways, for example, as 616429584 + 2134070416 = 24828^2 + 46196^2 .

It is not an unprimeable number, because it can be changed into a prime (2750500001) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 497250 + ... + 502750.

Almost surely, 2^2750500000 is an apocalyptic number.

2750500000 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 2750500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3384976203).

2750500000 is an abundant number, since it is smaller than the sum of its proper divisors (4019452406).

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

2750500000 is an frugal number, since it uses more digits than its factorization.

2750500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541 (or 5508 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 19.

The square root of 2750500000 is about 52445.2095047775. The cubic root of 2750500000 is about 1401.1045704649.

Adding to 2750500000 its reverse (50572), we get a palindrome (2750550572).

The spelling of 2750500000 in words is "two billion, seven hundred fifty million, five hundred thousand".