555643064 has 8 divisors (see below), whose sum is σ = 1041830760. Its totient is φ = 277821528.

The previous prime is 555643057. The next prime is 555643069. The reversal of 555643064 is 460346555.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555643069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34727684 + ... + 34727699.

It is an arithmetic number, because the mean of its divisors is an integer number (130228845).

Almost surely, 2^555643064 is an apocalyptic number.

It is an amenable number.

555643064 is a deficient number, since it is larger than the sum of its proper divisors (486187696).

555643064 is a wasteful number, since it uses less digits than its factorization.

555643064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69455389 (or 69455385 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The square root of 555643064 is about 23572.0823008915. The cubic root of 555643064 is about 822.1138520539.

The spelling of 555643064 in words is "five hundred fifty-five million, six hundred forty-three thousand, sixty-four".