55558288 has 20 divisors (see below), whose sum is σ = 107834368. Its totient is φ = 27730080.

The previous prime is 55558273. The next prime is 55558289. The reversal of 55558288 is 88285555.

It is not an unprimeable number, because it can be changed into a prime (55558289) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7345 + ... + 12847.

Almost surely, 2^55558288 is an apocalyptic number.

It is an amenable number.

55558288 is a deficient number, since it is larger than the sum of its proper divisors (52276080).

55558288 is a wasteful number, since it uses less digits than its factorization.

55558288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6142 (or 6136 counting only the distinct ones).

The product of its digits is 640000, while the sum is 46.

The square root of 55558288 is about 7453.7432206912. The cubic root of 55558288 is about 381.5776698180.

It can be divided in two parts, 555582 and 88, that multiplied together give a triangular number (48891216 = T₉₈₈₈).

The spelling of 55558288 in words is "fifty-five million, five hundred fifty-eight thousand, two hundred eighty-eight".