55327120 has 20 divisors (see below), whose sum is σ = 128635740. Its totient is φ = 22130816.

The previous prime is 55327091. The next prime is 55327123. The reversal of 55327120 is 2172355.

It can be written as a sum of positive squares in 2 ways, for example, as 15586704 + 39740416 = 3948^2 + 6304^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×55327120² = 6122180414988800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55327123) 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, 345715 + ... + 345874.

It is an arithmetic number, because the mean of its divisors is an integer number (6431787).

Almost surely, 2^55327120 is an apocalyptic number.

It is an amenable number.

55327120 is an abundant number, since it is smaller than the sum of its proper divisors (73308620).

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

55327120 is a wasteful number, since it uses less digits than its factorization.

55327120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691602 (or 691596 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 55327120 is about 7438.2202172294. The cubic root of 55327120 is about 381.0477088618.

Adding to 55327120 its reverse (2172355), we get a palindrome (57499475).

The spelling of 55327120 in words is "fifty-five million, three hundred twenty-seven thousand, one hundred twenty".