55318250 has 32 divisors (see below), whose sum is σ = 111528144. Its totient is φ = 20424000.

The previous prime is 55318189. The next prime is 55318259. The reversal of 55318250 is 5281355.

55318250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4609609 + 50708641 = 2147^2 + 7121^2 .

It is not an unprimeable number, because it can be changed into a prime (55318259) 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 15 ways as a sum of consecutive naturals, for example, 5261 + ... + 11760.

Almost surely, 2^55318250 is an apocalyptic number.

55318250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55318250 is an abundant number, since it is smaller than the sum of its proper divisors (56209894).

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

55318250 is a wasteful number, since it uses less digits than its factorization.

55318250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17051 (or 17041 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 55318250 is about 7437.6239485470. The cubic root of 55318250 is about 381.0273446847.

The spelling of 55318250 in words is "fifty-five million, three hundred eighteen thousand, two hundred fifty".