3625564169 has 2 divisors, whose sum is σ = 3625564170. Its totient is φ = 3625564168.

The previous prime is 3625564153. The next prime is 3625564171. The reversal of 3625564169 is 9614655263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3336564169 + 289000000 = 57763^2 + 17000^2 .

It is a cyclic number.

It is not a de Polignac number, because 3625564169 - 2⁴ = 3625564153 is a prime.

It is a super-2 number, since 2×3625564169² = 26289431087073321122, which contains 22 as substring.

Together with 3625564171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3625564069) 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 as a sum of consecutive naturals, namely, 1812782084 + 1812782085.

It is an arithmetic number, because the mean of its divisors is an integer number (1812782085).

Almost surely, 2^3625564169 is an apocalyptic number.

It is an amenable number.

3625564169 is a deficient number, since it is larger than the sum of its proper divisors (1).

3625564169 is an equidigital number, since it uses as much as digits as its factorization.

3625564169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 47.

The square root of 3625564169 is about 60212.6578802165. The cubic root of 3625564169 is about 1536.2381009348.

The spelling of 3625564169 in words is "three billion, six hundred twenty-five million, five hundred sixty-four thousand, one hundred sixty-nine".