355122225 has 60 divisors (see below), whose sum is σ = 662591644. Its totient is φ = 188023680.

The previous prime is 355122203. The next prime is 355122241. The reversal of 355122225 is 522221553.

It can be written as a sum of positive squares in 6 ways, for example, as 92390544 + 262731681 = 9612^2 + 16209^2 .

It is not a de Polignac number, because 355122225 - 2²⁰ = 354073649 is a prime.

It is a super-2 number, since 2×355122225² = 252223589377901250, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 317367 + ... + 318483.

Almost surely, 2^355122225 is an apocalyptic number.

It is an amenable number.

355122225 is a deficient number, since it is larger than the sum of its proper divisors (307469419).

355122225 is a wasteful number, since it uses less digits than its factorization.

355122225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296 (or 1282 counting only the distinct ones).

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

The square root of 355122225 is about 18844.6869170066. The cubic root of 355122225 is about 708.1511276063.

Adding to 355122225 its reverse (522221553), we get a palindrome (877343778).

The spelling of 355122225 in words is "three hundred fifty-five million, one hundred twenty-two thousand, two hundred twenty-five".