355222225 has 12 divisors (see below), whose sum is σ = 466386444. Its totient is φ = 267461120.

The previous prime is 355222213. The next prime is 355222261. The reversal of 355222225 is 522222553.

It can be written as a sum of positive squares in 6 ways, for example, as 2421136 + 352801089 = 1556^2 + 18783^2 .

It is a de Polignac number, because none of the positive numbers 2^k-355222225 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 355222193 and 355222202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417484 + ... + 418333.

It is an arithmetic number, because the mean of its divisors is an integer number (38865537).

Almost surely, 2^355222225 is an apocalyptic number.

It is an amenable number.

355222225 is a deficient number, since it is larger than the sum of its proper divisors (111164219).

355222225 is a wasteful number, since it uses less digits than its factorization.

355222225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835844 (or 835839 counting only the distinct ones).

The product of its digits is 12000, while the sum is 28.

The square root of 355222225 is about 18847.3399979944. The cubic root of 355222225 is about 708.2175915463.

Adding to 355222225 its reverse (522222553), we get a palindrome (877444778).

The spelling of 355222225 in words is "three hundred fifty-five million, two hundred twenty-two thousand, two hundred twenty-five".