3621546225 has 144 divisors (see below), whose sum is σ = 7309246464. Its totient is φ = 1699056000.

The previous prime is 3621546217. The next prime is 3621546293. The reversal of 3621546225 is 5226451263.

3621546225 is a `hidden beast` number, since 3 + 6 + 21 + 5 + 4 + 622 + 5 = 666.

It is not a de Polignac number, because 3621546225 - 2³ = 3621546217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3621546225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 18960880 + ... + 18961070.

It is an arithmetic number, because the mean of its divisors is an integer number (50758656).

Almost surely, 2^3621546225 is an apocalyptic number.

It is an amenable number.

3621546225 is an abundant number, since it is smaller than the sum of its proper divisors (3687700239).

3621546225 is a wasteful number, since it uses less digits than its factorization.

3621546225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 420 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 3621546225 is about 60179.2840186721. The cubic root of 3621546225 is about 1535.6703915652.

Adding to 3621546225 its reverse (5226451263), we get a palindrome (8847997488).

The spelling of 3621546225 in words is "three billion, six hundred twenty-one million, five hundred forty-six thousand, two hundred twenty-five".