4255666 has 16 divisors (see below), whose sum is σ = 6621120. Its totient is φ = 2049840.

The previous prime is 4255637. The next prime is 4255673. The reversal of 4255666 is 6665524.

It is a super-2 number, since 2×4255666² = 36221386207112, which contains 22 as substring.

It is a congruent 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, 9475 + ... + 9913.

It is an arithmetic number, because the mean of its divisors is an integer number (413820).

Almost surely, 2^4255666 is an apocalyptic number.

4255666 is a deficient number, since it is larger than the sum of its proper divisors (2365454).

4255666 is a wasteful number, since it uses less digits than its factorization.

4255666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609.

The product of its digits is 43200, while the sum is 34.

The square root of 4255666 is about 2062.9265619503. The cubic root of 4255666 is about 162.0525410027.

The spelling of 4255666 in words is "four million, two hundred fifty-five thousand, six hundred sixty-six".