554550066 has 24 divisors (see below), whose sum is σ = 1373171904. Its totient is φ = 158442840.

The previous prime is 554550049. The next prime is 554550071. The reversal of 554550066 is 660055455.

It is a happy number.

554550066 is a `hidden beast` number, since 5 + 545 + 50 + 0 + 66 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 554550066.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2200470 + ... + 2200721.

It is an arithmetic number, because the mean of its divisors is an integer number (57215496).

Almost surely, 2^554550066 is an apocalyptic number.

554550066 is an abundant number, since it is smaller than the sum of its proper divisors (818621838).

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

554550066 is a wasteful number, since it uses less digits than its factorization.

554550066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401206 (or 4401203 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 554550066 is about 23548.8867252785. The cubic root of 554550066 is about 821.5744418422.

It can be divided in two parts, 5545 and 50066, that added together give a triangular number (55611 = T₃₃₃).

The spelling of 554550066 in words is "five hundred fifty-four million, five hundred fifty thousand, sixty-six".