2609280725 has 6 divisors (see below), whose sum is σ = 3235508130. Its totient is φ = 2087424560.

The previous prime is 2609280719. The next prime is 2609280749. The reversal of 2609280725 is 5270829062.

It can be written as a sum of positive squares in 3 ways, for example, as 31281649 + 2577999076 = 5593^2 + 50774^2 .

It is not a de Polignac number, because 2609280725 - 2¹² = 2609276629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52185590 + ... + 52185639.

It is an arithmetic number, because the mean of its divisors is an integer number (539251355).

Almost surely, 2^2609280725 is an apocalyptic number.

2609280725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2609280725 is a deficient number, since it is larger than the sum of its proper divisors (626227405).

2609280725 is a wasteful number, since it uses less digits than its factorization.

2609280725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104371239 (or 104371234 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 2609280725 is about 51081.1190656587. The cubic root of 2609280725 is about 1376.7030314062.

The spelling of 2609280725 in words is "two billion, six hundred nine million, two hundred eighty thousand, seven hundred twenty-five".