3643015225 has 24 divisors (see below), whose sum is σ = 4551083712. Its totient is φ = 2892724800.

The previous prime is 3643015223. The next prime is 3643015231. The reversal of 3643015225 is 5225103463.

It is a happy number.

It is not a de Polignac number, because 3643015225 - 2¹ = 3643015223 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3643015223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2652639 + ... + 2654011.

It is an arithmetic number, because the mean of its divisors is an integer number (189628488).

Almost surely, 2^3643015225 is an apocalyptic number.

It is an amenable number.

3643015225 is a deficient number, since it is larger than the sum of its proper divisors (908068487).

3643015225 is a wasteful number, since it uses less digits than its factorization.

3643015225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097 (or 2092 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 3643015225 is about 60357.3957771539. The cubic root of 3643015225 is about 1538.6989665181.

Adding to 3643015225 its reverse (5225103463), we get a palindrome (8868118688).

The spelling of 3643015225 in words is "three billion, six hundred forty-three million, fifteen thousand, two hundred twenty-five".