3225520144 has 40 divisors (see below), whose sum is σ = 7791519168. Its totient is φ = 1256695680.

The previous prime is 3225520139. The next prime is 3225520153. The reversal of 3225520144 is 4410255223.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307827 + ... + 1310290.

Almost surely, 2^3225520144 is an apocalyptic number.

It is an amenable number.

3225520144 is an abundant number, since it is smaller than the sum of its proper divisors (4565999024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3225520144 is a wasteful number, since it uses less digits than its factorization.

3225520144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618143 (or 2618137 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 3225520144 is about 56793.6628859242. The cubic root of 3225520144 is about 1477.5196072001.

Adding to 3225520144 its reverse (4410255223), we get a palindrome (7635775367).

The spelling of 3225520144 in words is "three billion, two hundred twenty-five million, five hundred twenty thousand, one hundred forty-four".