2720520520 has 32 divisors (see below), whose sum is σ = 6126751800. Its totient is φ = 1087216128.

The previous prime is 2720520511. The next prime is 2720520587. The reversal of 2720520520 is 250250272.

It can be written as a sum of positive squares in 4 ways, for example, as 704690116 + 2015830404 = 26546^2 + 44898^2 .

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, 14236 + ... + 75124.

Almost surely, 2^2720520520 is an apocalyptic number.

2720520520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2720520520 is an abundant number, since it is smaller than the sum of its proper divisors (3406231280).

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

2720520520 is a wasteful number, since it uses less digits than its factorization.

2720520520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62017 (or 62013 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 2720520520 is about 52158.6092606005. The cubic root of 2720520520 is about 1395.9954474774.

Adding to 2720520520 its reverse (250250272), we get a palindrome (2970770792).

The spelling of 2720520520 in words is "two billion, seven hundred twenty million, five hundred twenty thousand, five hundred twenty".