6668025 has 48 divisors (see below), whose sum is σ = 13582464. Its totient is φ = 2810880.

The previous prime is 6668021. The next prime is 6668027. The reversal of 6668025 is 5208666.

It is not a de Polignac number, because 6668025 - 2² = 6668021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6668021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6337 + ... + 7313.

It is an arithmetic number, because the mean of its divisors is an integer number (282968).

Almost surely, 2^6668025 is an apocalyptic number.

6668025 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6668025 is an abundant number, since it is smaller than the sum of its proper divisors (6914439).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6668025 is a wasteful number, since it uses less digits than its factorization.

6668025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 6668025 is about 2582.2519241933. The cubic root of 6668025 is about 188.2199873142.

The spelling of 6668025 in words is "six million, six hundred sixty-eight thousand, twenty-five".