3657450225 has 96 divisors (see below), whose sum is σ = 7413525504. Its totient is φ = 1565625600.

The previous prime is 3657450187. The next prime is 3657450241. The reversal of 3657450225 is 5220547563.

It is a happy number.

It is not a de Polignac number, because 3657450225 - 2¹¹ = 3657448177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 239262 + ... + 254088.

It is an arithmetic number, because the mean of its divisors is an integer number (77224224).

Almost surely, 2^3657450225 is an apocalyptic number.

It is an amenable number.

3657450225 is an abundant number, since it is smaller than the sum of its proper divisors (3756075279).

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

3657450225 is a wasteful number, since it uses less digits than its factorization.

3657450225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14887 (or 14882 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 39.

The square root of 3657450225 is about 60476.8569371789. The cubic root of 3657450225 is about 1540.7285899979.

Adding to 3657450225 its reverse (5220547563), we get a palindrome (8877997788).

The spelling of 3657450225 in words is "three billion, six hundred fifty-seven million, four hundred fifty thousand, two hundred twenty-five".