554664 has 48 divisors (see below), whose sum is σ = 1532160. Its totient is φ = 167200.

The previous prime is 554663. The next prime is 554669. The reversal of 554664 is 466455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2809 + ... + 2999.

It is an arithmetic number, because the mean of its divisors is an integer number (31920).

2⁵⁵⁴⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 554664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (766080).

554664 is an abundant number, since it is smaller than the sum of its proper divisors (977496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

554664 is a wasteful number, since it uses less digits than its factorization.

554664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 207 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 554664 is about 744.7576787117. The cubic root of 554664 is about 82.1630702980.

Subtracting from 554664 its reverse (466455), we obtain a square (88209 = 297²).

The spelling of 554664 in words is "five hundred fifty-four thousand, six hundred sixty-four".