6417625 has 8 divisors (see below), whose sum is σ = 8009352. Its totient is φ = 5134000.

The previous prime is 6417623. The next prime is 6417629. The reversal of 6417625 is 5267146.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11664 + 6405961 = 108^2 + 2531^2 .

It is not a de Polignac number, because 6417625 - 2¹ = 6417623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6417623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25546 + ... + 25795.

It is an arithmetic number, because the mean of its divisors is an integer number (1001169).

Almost surely, 2^6417625 is an apocalyptic number.

It is an amenable number.

6417625 is a deficient number, since it is larger than the sum of its proper divisors (1591727).

6417625 is an equidigital number, since it uses as much as digits as its factorization.

6417625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51356 (or 51346 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 6417625 is about 2533.3031796451. The cubic root of 6417625 is about 185.8338304709.

It can be divided in two parts, 64 and 17625, that added together give a square (17689 = 133²).

The spelling of 6417625 in words is "six million, four hundred seventeen thousand, six hundred twenty-five".