2721500224 has 21 divisors (see below), whose sum is σ = 5401305301. Its totient is φ = 1360541440.

The previous prime is 2721500209. The next prime is 2721500227. The reversal of 2721500224 is 4220051272.

The square root of 2721500224 is 52168.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2523253824 + 198246400 = 50232^2 + 14080^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2721500227) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 414084 + ... + 420604.

Almost surely, 2^2721500224 is an apocalyptic number.

2721500224 is the 52168-th square number.

It is an amenable number.

2721500224 is a deficient number, since it is larger than the sum of its proper divisors (2679805077).

2721500224 is an frugal number, since it uses more digits than its factorization.

2721500224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13054 (or 6523 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The cubic root of 2721500224 is about 1396.1630009748.

Multiplying 2721500224 by its sum of digits (25), we get a square (68037505600 = 260840²).

Adding to 2721500224 its reverse (4220051272), we get a palindrome (6941551496).

The spelling of 2721500224 in words is "two billion, seven hundred twenty-one million, five hundred thousand, two hundred twenty-four".