55505353664 has 14 divisors (see below), whose sum is σ = 110143436304. Its totient is φ = 27752676800.

The previous prime is 55505353663. The next prime is 55505353693. The reversal of 55505353664 is 46635350555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505353663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433635512 + ... + 433635639.

Almost surely, 2^55505353664 is an apocalyptic number.

It is an amenable number.

55505353664 is a deficient number, since it is larger than the sum of its proper divisors (54638082640).

55505353664 is an equidigital number, since it uses as much as digits as its factorization.

55505353664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867271163 (or 867271153 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 47.

The spelling of 55505353664 in words is "fifty-five billion, five hundred five million, three hundred fifty-three thousand, six hundred sixty-four".