2625377309 has 2 divisors, whose sum is σ = 2625377310. Its totient is φ = 2625377308.

The previous prime is 2625377273. The next prime is 2625377369. The reversal of 2625377309 is 9037735262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2270808409 + 354568900 = 47653^2 + 18830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2625377309 is a prime.

It is a super-2 number, since 2×2625377309² = 13785212029224162962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2625377309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2625377369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312688654 + 1312688655.

It is an arithmetic number, because the mean of its divisors is an integer number (1312688655).

Almost surely, 2^2625377309 is an apocalyptic number.

It is an amenable number.

2625377309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2625377309 is an equidigital number, since it uses as much as digits as its factorization.

2625377309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 44.

The square root of 2625377309 is about 51238.4358562983. The cubic root of 2625377309 is about 1379.5281781621.

The spelling of 2625377309 in words is "two billion, six hundred twenty-five million, three hundred seventy-seven thousand, three hundred nine".