6663055 has 16 divisors (see below), whose sum is σ = 9216000. Its totient is φ = 4529952.

The previous prime is 6663043. The next prime is 6663067. The reversal of 6663055 is 5503666.

6663055 = T₉₀ + T₉₁ + ... + T₃₄₃.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6663043) and next prime (6663067).

It is not a de Polignac number, because 6663055 - 2⁹ = 6662543 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3696 + ... + 5194.

It is an arithmetic number, because the mean of its divisors is an integer number (576000).

Almost surely, 2^6663055 is an apocalyptic number.

6663055 is a deficient number, since it is larger than the sum of its proper divisors (2552945).

6663055 is a wasteful number, since it uses less digits than its factorization.

6663055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 6663055 is about 2581.2894064789. The cubic root of 6663055 is about 188.1732125523.

It can be divided in two parts, 666 and 3055, that added together give a square (3721 = 61²).

The spelling of 6663055 in words is "six million, six hundred sixty-three thousand, fifty-five".