55248172 has 12 divisors (see below), whose sum is σ = 110496400. Its totient is φ = 23677776.

The previous prime is 55248119. The next prime is 55248173. The reversal of 55248172 is 27184255.

It is a happy number.

55248172 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (55248173) 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, 986547 + ... + 986602.

Almost surely, 2^55248172 is an apocalyptic number.

It is an amenable number.

55248172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55248172 is a wasteful number, since it uses less digits than its factorization.

55248172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973160 (or 1973158 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The square root of 55248172 is about 7432.9114080554. The cubic root of 55248172 is about 380.8663796171.

The spelling of 55248172 in words is "fifty-five million, two hundred forty-eight thousand, one hundred seventy-two".