3644162525 has 12 divisors (see below), whose sum is σ = 4519517652. Its totient is φ = 2914842240.

The previous prime is 3644162521. The next prime is 3644162567. The reversal of 3644162525 is 5252614463.

3644162525 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 16630084 + 3627532441 = 4078^2 + 60229^2 .

It is not a de Polignac number, because 3644162525 - 2² = 3644162521 is a prime.

It is a super-2 number, since 2×3644162525² = 26559841017228751250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644162521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254969 + ... + 268881.

It is an arithmetic number, because the mean of its divisors is an integer number (376626471).

Almost surely, 2^3644162525 is an apocalyptic number.

It is an amenable number.

3644162525 is a deficient number, since it is larger than the sum of its proper divisors (875355127).

3644162525 is a wasteful number, since it uses less digits than its factorization.

3644162525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24400 (or 24395 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 3644162525 is about 60366.8992495059. The cubic root of 3644162525 is about 1538.8604777871.

Adding to 3644162525 its reverse (5252614463), we get a palindrome (8896776988).

The spelling of 3644162525 in words is "three billion, six hundred forty-four million, one hundred sixty-two thousand, five hundred twenty-five".