6620265 has 64 divisors (see below), whose sum is σ = 12960000. Its totient is φ = 3193344.

The previous prime is 6620261. The next prime is 6620281. The reversal of 6620265 is 5620266.

It is not a de Polignac number, because 6620265 - 2² = 6620261 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6620261) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 74341 + ... + 74429.

It is an arithmetic number, because the mean of its divisors is an integer number (202500).

Almost surely, 2^6620265 is an apocalyptic number.

It is an amenable number.

6620265 is a deficient number, since it is larger than the sum of its proper divisors (6339735).

6620265 is a wasteful number, since it uses less digits than its factorization.

6620265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 6620265 is about 2572.9875631258. The cubic root of 6620265 is about 187.7695323600.

Subtracting from 6620265 its reverse (5620266), we obtain a palindrome (999999).

The spelling of 6620265 in words is "six million, six hundred twenty thousand, two hundred sixty-five".