2791537225 has 9 divisors (see below), whose sum is σ = 3461833767. Its totient is φ = 2233018440.

The previous prime is 2791537211. The next prime is 2791537289. The reversal of 2791537225 is 5227351972.

The square root of 2791537225 is 52835.

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

2791537225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1004953401 + 1786583824 = 31701^2 + 42268^2 .

It is not a de Polignac number, because 2791537225 - 2¹¹ = 2791535177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 258892 + ... + 269458.

Almost surely, 2^2791537225 is an apocalyptic number.

2791537225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2791537225 is the 52835-th square number.

2791537225 is the 26418-th centered octagonal number.

It is an amenable number.

2791537225 is a deficient number, since it is larger than the sum of its proper divisors (670296542).

2791537225 is an frugal number, since it uses more digits than its factorization.

2791537225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21144 (or 10572 counting only the distinct ones).

The product of its digits is 264600, while the sum is 43.

The cubic root of 2791537225 is about 1408.0383204600.

The spelling of 2791537225 in words is "two billion, seven hundred ninety-one million, five hundred thirty-seven thousand, two hundred twenty-five".