3555225 has 48 divisors (see below), whose sum is σ = 6844800. Its totient is φ = 1805760.

The previous prime is 3555217. The next prime is 3555229. The reversal of 3555225 is 5225553.

It is not a de Polignac number, because 3555225 - 2³ = 3555217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

3555225 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3555229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15411 + ... + 15639.

It is an arithmetic number, because the mean of its divisors is an integer number (142600).

Almost surely, 2^3555225 is an apocalyptic number.

It is an amenable number.

3555225 is a deficient number, since it is larger than the sum of its proper divisors (3289575).

3555225 is a wasteful number, since it uses less digits than its factorization.

3555225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 260 counting only the distinct ones).

The product of its digits is 7500, while the sum is 27.

The square root of 3555225 is about 1885.5304293487. The cubic root of 3555225 is about 152.6238356315.

The spelling of 3555225 in words is "three million, five hundred fifty-five thousand, two hundred twenty-five".