6622625 has 8 divisors (see below), whose sum is σ = 8265192. Its totient is φ = 5298000.

The previous prime is 6622619. The next prime is 6622631. The reversal of 6622625 is 5262266.

It is an interprime number because it is at equal distance from previous prime (6622619) and next prime (6622631).

It can be written as a sum of positive squares in 4 ways, for example, as 130321 + 6492304 = 361^2 + 2548^2 .

It is not a de Polignac number, because 6622625 - 2¹² = 6618529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26366 + ... + 26615.

It is an arithmetic number, because the mean of its divisors is an integer number (1033149).

Almost surely, 2^6622625 is an apocalyptic number.

It is an amenable number.

6622625 is a deficient number, since it is larger than the sum of its proper divisors (1642567).

6622625 is an equidigital number, since it uses as much as digits as its factorization.

6622625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52996 (or 52986 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 6622625 is about 2573.4461331063. The cubic root of 6622625 is about 187.7918418119.

The spelling of 6622625 in words is "six million, six hundred twenty-two thousand, six hundred twenty-five".