6555554 has 4 divisors (see below), whose sum is σ = 9833334. Its totient is φ = 3277776.

The previous prime is 6555547. The next prime is 6555581. The reversal of 6555554 is 4555556.

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., 6027025 + 528529 = 2455^2 + 727^2 .

It is a nialpdrome in base 10.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1638887 + ... + 1638890.

Almost surely, 2^6555554 is an apocalyptic number.

6555554 is a deficient number, since it is larger than the sum of its proper divisors (3277780).

6555554 is a wasteful number, since it uses less digits than its factorization.

6555554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277779.

The product of its digits is 75000, while the sum is 35.

The square root of 6555554 is about 2560.3816121821. The cubic root of 6555554 is about 187.1557321301.

The spelling of 6555554 in words is "six million, five hundred fifty-five thousand, five hundred fifty-four".