6555442 has 4 divisors (see below), whose sum is σ = 9833166. Its totient is φ = 3277720.

The previous prime is 6555433. The next prime is 6555443. The reversal of 6555442 is 2445556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4124961 + 2430481 = 2031^2 + 1559^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (6555443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1638859 + ... + 1638862.

Almost surely, 2^6555442 is an apocalyptic number.

6555442 is a deficient number, since it is larger than the sum of its proper divisors (3277724).

6555442 is a wasteful number, since it uses less digits than its factorization.

6555442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277723.

The product of its digits is 24000, while the sum is 31.

The square root of 6555442 is about 2560.3597403490. The cubic root of 6555442 is about 187.1546662877.

The spelling of 6555442 in words is "six million, five hundred fifty-five thousand, four hundred forty-two".