2625569 has 2 divisors, whose sum is σ = 2625570. Its totient is φ = 2625568.

The previous prime is 2625563. The next prime is 2625577. The reversal of 2625569 is 9655262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2289169 + 336400 = 1513^2 + 580^2 .

It is a cyclic number.

It is not a de Polignac number, because 2625569 - 2⁸ = 2625313 is a prime.

It is a super-2 number, since 2×2625569² = 13787225147522, which contains 22 as substring.

It is a Sophie Germain prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁶ + 6 + 2¹³ + 5⁶ + 5⁸ + 6⁸ + 9⁶ .

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2625563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312784 + 1312785.

It is an arithmetic number, because the mean of its divisors is an integer number (1312785).

2^2625569 is an apocalyptic number.

It is an amenable number.

2625569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2625569 is an equidigital number, since it uses as much as digits as its factorization.

2625569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 35.

The square root of 2625569 is about 1620.3607622996. The cubic root of 2625569 is about 137.9561752600.

The spelling of 2625569 in words is "two million, six hundred twenty-five thousand, five hundred sixty-nine".