552626784 has 144 divisors (see below), whose sum is σ = 1641669120. Its totient is φ = 176117760.

The previous prime is 552626759. The next prime is 552626791. The reversal of 552626784 is 487626255.

552626784 is a `hidden beast` number, since 552 + 6 + 26 + 78 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1060444 + ... + 1060964.

It is an arithmetic number, because the mean of its divisors is an integer number (11400480).

Almost surely, 2^552626784 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 552626784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (820834560).

552626784 is an abundant number, since it is smaller than the sum of its proper divisors (1089042336).

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

552626784 is a wasteful number, since it uses less digits than its factorization.

552626784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 682 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 552626784 is about 23508.0153139307. The cubic root of 552626784 is about 820.6235510957.

The spelling of 552626784 in words is "five hundred fifty-two million, six hundred twenty-six thousand, seven hundred eighty-four".