2611225625 has 20 divisors (see below), whose sum is σ = 3266619972. Its totient is φ = 2086656000.

The previous prime is 2611225621. The next prime is 2611225633. The reversal of 2611225625 is 5265221162.

It can be written as a sum of positive squares in 10 ways, for example, as 2334435856 + 276789769 = 48316^2 + 16637^2 .

It is not a de Polignac number, because 2611225625 - 2² = 2611225621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2611225591 and 2611225600.

It is not an unprimeable number, because it can be changed into a prime (2611225621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 758909 + ... + 762341.

Almost surely, 2^2611225625 is an apocalyptic number.

2611225625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2611225625 is a deficient number, since it is larger than the sum of its proper divisors (655394347).

2611225625 is an equidigital number, since it uses as much as digits as its factorization.

2611225625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670 (or 4655 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 2611225625 is about 51100.1528862684. The cubic root of 2611225625 is about 1377.0450010933.

Adding to 2611225625 its reverse (5265221162), we get a palindrome (7876446787).

The spelling of 2611225625 in words is "two billion, six hundred eleven million, two hundred twenty-five thousand, six hundred twenty-five".