55168250 has 16 divisors (see below), whose sum is σ = 103275432. Its totient is φ = 22067200.

The previous prime is 55168241. The next prime is 55168277. The reversal of 55168250 is 5286155.

It can be written as a sum of positive squares in 4 ways, for example, as 6405961 + 48762289 = 2531^2 + 6983^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110087 + ... + 110586.

Almost surely, 2^55168250 is an apocalyptic number.

55168250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55168250 is a deficient number, since it is larger than the sum of its proper divisors (48107182).

55168250 is a wasteful number, since it uses less digits than its factorization.

55168250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220690 (or 220680 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 55168250 is about 7427.5332378926. The cubic root of 55168250 is about 380.6826372327.

The spelling of 55168250 in words is "fifty-five million, one hundred sixty-eight thousand, two hundred fifty".