55248620 has 24 divisors (see below), whose sum is σ = 132597024. Its totient is φ = 18942336.

The previous prime is 55248617. The next prime is 55248649. The reversal of 55248620 is 2684255.

55248620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197177 + ... + 197456.

It is an arithmetic number, because the mean of its divisors is an integer number (5524876).

Almost surely, 2^55248620 is an apocalyptic number.

It is an amenable number.

55248620 is an abundant number, since it is smaller than the sum of its proper divisors (77348404).

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

55248620 is a wasteful number, since it uses less digits than its factorization.

55248620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394649 (or 394647 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 55248620 is about 7432.9415442340. The cubic root of 55248620 is about 380.8674090791.

The spelling of 55248620 in words is "fifty-five million, two hundred forty-eight thousand, six hundred twenty".