3625225 has 6 divisors (see below), whose sum is σ = 4495310. Its totient is φ = 2900160.

The previous prime is 3625213. The next prime is 3625229. The reversal of 3625225 is 5225263.

It can be written as a sum of positive squares in 3 ways, for example, as 9 + 3625216 = 3^2 + 1904^2 .

It is not a de Polignac number, because 3625225 - 2²¹ = 1528073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 145009 = 3625225 / (3 + 6 + 2 + 5 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3625225.

It is not an unprimeable number, because it can be changed into a prime (3625229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72480 + ... + 72529.

Almost surely, 2^3625225 is an apocalyptic number.

It is an amenable number.

3625225 is a deficient number, since it is larger than the sum of its proper divisors (870085).

3625225 is a wasteful number, since it uses less digits than its factorization.

3625225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145019 (or 145014 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 3625225 is about 1904.0023634439. The cubic root of 3625225 is about 153.6190194773.

The spelling of 3625225 in words is "three million, six hundred twenty-five thousand, two hundred twenty-five".