554966 has 4 divisors (see below), whose sum is σ = 832452. Its totient is φ = 277482.

The previous prime is 554959. The next prime is 554969. The reversal of 554966 is 669455.

It is a happy number.

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

It is a super-2 number, since 2×554966² = 615974522312, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 554966.

It is not an unprimeable number, because it can be changed into a prime (554969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138740 + ... + 138743.

It is an arithmetic number, because the mean of its divisors is an integer number (208113).

2⁵⁵⁴⁹⁶⁶ is an apocalyptic number.

554966 is a deficient number, since it is larger than the sum of its proper divisors (277486).

554966 is a wasteful number, since it uses less digits than its factorization.

554966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277485.

The product of its digits is 32400, while the sum is 35.

The square root of 554966 is about 744.9604016322. The cubic root of 554966 is about 82.1779794713.

Subtracting from 554966 its sum of digits (35), we obtain a triangular number (554931 = T₁₀₅₃).

The spelling of 554966 in words is "five hundred fifty-four thousand, nine hundred sixty-six".