655183225 has 12 divisors (see below), whose sum is σ = 840442860. Its totient is φ = 506072000.

The previous prime is 655183223. The next prime is 655183229. The reversal of 655183225 is 522381556.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 795664 + 654387561 = 892^2 + 25581^2 .

It is not a de Polignac number, because 655183225 - 2¹ = 655183223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655183223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451126 + ... + 452575.

It is an arithmetic number, because the mean of its divisors is an integer number (70036905).

Almost surely, 2^655183225 is an apocalyptic number.

It is an amenable number.

655183225 is a deficient number, since it is larger than the sum of its proper divisors (185259635).

655183225 is a wasteful number, since it uses less digits than its factorization.

655183225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903740 (or 903735 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 655183225 is about 25596.5471304237. The cubic root of 655183225 is about 868.5355311378.

The spelling of 655183225 in words is "six hundred fifty-five million, one hundred eighty-three thousand, two hundred twenty-five".