352215225 has 36 divisors (see below), whose sum is σ = 632182876. Its totient is φ = 187453440.

The previous prime is 352215209. The next prime is 352215229. The reversal of 352215225 is 522512253.

It can be written as a sum of positive squares in 6 ways, for example, as 94420089 + 257795136 = 9717^2 + 16056^2 .

It is not a de Polignac number, because 352215225 - 2⁴ = 352215209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352215229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 128469 + ... + 131181.

Almost surely, 2^352215225 is an apocalyptic number.

It is an amenable number.

352215225 is a deficient number, since it is larger than the sum of its proper divisors (279967651).

352215225 is a wasteful number, since it uses less digits than its factorization.

352215225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306 (or 3298 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 352215225 is about 18767.3979283224. The cubic root of 352215225 is about 706.2135429010.

Adding to 352215225 its reverse (522512253), we get a palindrome (874727478).

The spelling of 352215225 in words is "three hundred fifty-two million, two hundred fifteen thousand, two hundred twenty-five".