3681223525 has 24 divisors (see below), whose sum is σ = 5228812160. Its totient is φ = 2518464960.

The previous prime is 3681223523. The next prime is 3681223529. The reversal of 3681223525 is 5253221863.

It is not a de Polignac number, because 3681223525 - 2¹ = 3681223523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681223523) 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 23 ways as a sum of consecutive naturals, for example, 52867 + ... + 100783.

Almost surely, 2^3681223525 is an apocalyptic number.

3681223525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3681223525 is a deficient number, since it is larger than the sum of its proper divisors (1547588635).

3681223525 is a wasteful number, since it uses less digits than its factorization.

3681223525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48373 (or 48368 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 3681223525 is about 60673.0873204916. The cubic root of 3681223525 is about 1544.0596107362.

The spelling of 3681223525 in words is "three billion, six hundred eighty-one million, two hundred twenty-three thousand, five hundred twenty-five".