55327880 has 32 divisors (see below), whose sum is σ = 129902400. Its totient is φ = 21168576.

The previous prime is 55327873. The next prime is 55327891. The reversal of 55327880 is 8872355.

It is a super-2 number, since 2×55327880² = 6122348610588800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 29150 + ... + 30989.

It is an arithmetic number, because the mean of its divisors is an integer number (4059450).

Almost surely, 2^55327880 is an apocalyptic number.

It is an amenable number.

55327880 is an abundant number, since it is smaller than the sum of its proper divisors (74574520).

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

55327880 is a wasteful number, since it uses less digits than its factorization.

55327880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60173 (or 60169 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 55327880 is about 7438.2713045438. The cubic root of 55327880 is about 381.0494536055.

The spelling of 55327880 in words is "fifty-five million, three hundred twenty-seven thousand, eight hundred eighty".