3421517225 has 24 divisors (see below), whose sum is σ = 4850993088. Its totient is φ = 2345112000.

The previous prime is 3421517221. The next prime is 3421517249. The reversal of 3421517225 is 5227151243.

It is not a de Polignac number, because 3421517225 - 2² = 3421517221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3421517191 and 3421517200.

It is not an unprimeable number, because it can be changed into a prime (3421517221) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 671387 + ... + 676463.

It is an arithmetic number, because the mean of its divisors is an integer number (202124712).

Almost surely, 2^3421517225 is an apocalyptic number.

3421517225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3421517225 is a deficient number, since it is larger than the sum of its proper divisors (1429475863).

3421517225 is a wasteful number, since it uses less digits than its factorization.

3421517225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8945 (or 8940 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 3421517225 is about 58493.7366305146. The cubic root of 3421517225 is about 1506.8600196673.

Adding to 3421517225 its reverse (5227151243), we get a palindrome (8648668468).

The spelling of 3421517225 in words is "three billion, four hundred twenty-one million, five hundred seventeen thousand, two hundred twenty-five".