2513897225 has 54 divisors (see below), whose sum is σ = 3708950670. Its totient is φ = 1685322240.

The previous prime is 2513897209. The next prime is 2513897227. The reversal of 2513897225 is 5227983152.

It can be written as a sum of positive squares in 3 ways, for example, as 13097161 + 2500800064 = 3619^2 + 50008^2 .

It is not a de Polignac number, because 2513897225 - 2⁴ = 2513897209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2513897227) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 2705561 + ... + 2706489.

Almost surely, 2^2513897225 is an apocalyptic number.

2513897225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2513897225 is a deficient number, since it is larger than the sum of its proper divisors (1195053445).

2513897225 is an equidigital number, since it uses as much as digits as its factorization.

2513897225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 988 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 2513897225 is about 50138.7796520817. The cubic root of 2513897225 is about 1359.7190208530.

The spelling of 2513897225 in words is "two billion, five hundred thirteen million, eight hundred ninety-seven thousand, two hundred twenty-five".