55308812 has 24 divisors (see below), whose sum is σ = 105277872. Its totient is φ = 25272000.

The previous prime is 55308809. The next prime is 55308823. The reversal of 55308812 is 21880355.

It is a happy number.

55308812 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, 14 + ... + 10517.

It is an arithmetic number, because the mean of its divisors is an integer number (4386578).

Almost surely, 2^55308812 is an apocalyptic number.

55308812 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55308812 is a deficient number, since it is larger than the sum of its proper divisors (49969060).

55308812 is a wasteful number, since it uses less digits than its factorization.

55308812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649 (or 10647 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 55308812 is about 7436.9894446611. The cubic root of 55308812 is about 381.0056740750.

The spelling of 55308812 in words is "fifty-five million, three hundred eight thousand, eight hundred twelve".