55208312 has 16 divisors (see below), whose sum is σ = 103599600. Its totient is φ = 27581760.

The previous prime is 55208311. The next prime is 55208323. The reversal of 55208312 is 21380255.

55208312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55208311) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12764 + ... + 16532.

It is an arithmetic number, because the mean of its divisors is an integer number (6474975).

Almost surely, 2^55208312 is an apocalyptic number.

It is an amenable number.

55208312 is a deficient number, since it is larger than the sum of its proper divisors (48391288).

55208312 is a wasteful number, since it uses less digits than its factorization.

55208312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606 (or 5602 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 55208312 is about 7430.2296061427. The cubic root of 55208312 is about 380.7747627921.

Adding to 55208312 its reverse (21380255), we get a palindrome (76588567).

The spelling of 55208312 in words is "fifty-five million, two hundred eight thousand, three hundred twelve".