3502205225 has 6 divisors (see below), whose sum is σ = 4342734510. Its totient is φ = 2801764160.

The previous prime is 3502205137. The next prime is 3502205233. The reversal of 3502205225 is 5225022053.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 368332864 + 3133872361 = 19192^2 + 55981^2 .

It is not a de Polignac number, because 3502205225 - 2²² = 3498010921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3502205194 and 3502205203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70044080 + ... + 70044129.

It is an arithmetic number, because the mean of its divisors is an integer number (723789085).

Almost surely, 2^3502205225 is an apocalyptic number.

It is an amenable number.

3502205225 is a deficient number, since it is larger than the sum of its proper divisors (840529285).

3502205225 is a wasteful number, since it uses less digits than its factorization.

3502205225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140088219 (or 140088214 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 3502205225 is about 59179.4324491204. The cubic root of 3502205225 is about 1518.6132933677.

Adding to 3502205225 its reverse (5225022053), we get a palindrome (8727227278).

The spelling of 3502205225 in words is "three billion, five hundred two million, two hundred five thousand, two hundred twenty-five".