55180288 has 22 divisors (see below), whose sum is σ = 110308736. Its totient is φ = 27589632.

The previous prime is 55180271. The next prime is 55180297. The reversal of 55180288 is 88208155.

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 as a sum of consecutive naturals, namely, 25920 + ... + 27967.

Almost surely, 2^55180288 is an apocalyptic number.

It is an amenable number.

55180288 is a deficient number, since it is larger than the sum of its proper divisors (55128448).

55180288 is an equidigital number, since it uses as much as digits as its factorization.

55180288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53907 (or 53889 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 55180288 is about 7428.3435569446. The cubic root of 55180288 is about 380.7103241982.

The spelling of 55180288 in words is "fifty-five million, one hundred eighty thousand, two hundred eighty-eight".