6617415225 has 24 divisors (see below), whose sum is σ = 10946848960. Its totient is φ = 3527334720.

The previous prime is 6617415193. The next prime is 6617415227. The reversal of 6617415225 is 5225147166.

It is not a de Polignac number, because 6617415225 - 2⁵ = 6617415193 is a prime.

It is a super-3 number, since 3×6617415225³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6617415227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117447 + ... + 164403.

Almost surely, 2^6617415225 is an apocalyptic number.

It is an amenable number.

6617415225 is a deficient number, since it is larger than the sum of its proper divisors (4329433735).

6617415225 is a wasteful number, since it uses less digits than its factorization.

6617415225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48849 (or 48844 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 6617415225 is about 81347.4967346875. The cubic root of 6617415225 is about 1877.4258592014.

The spelling of 6617415225 in words is "six billion, six hundred seventeen million, four hundred fifteen thousand, two hundred twenty-five".