55345250 has 32 divisors (see below), whose sum is σ = 105586416. Its totient is φ = 21715200.

The previous prime is 55345243. The next prime is 55345289. The reversal of 55345250 is 5254355.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 14984641 + 40360609 = 3871^2 + 6353^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11162 + ... + 15338.

Almost surely, 2^55345250 is an apocalyptic number.

55345250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55345250 is a deficient number, since it is larger than the sum of its proper divisors (50241166).

55345250 is a wasteful number, since it uses less digits than its factorization.

55345250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4247 (or 4237 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 55345250 is about 7439.4388229221. The cubic root of 55345250 is about 381.0893258271.

The spelling of 55345250 in words is "fifty-five million, three hundred forty-five thousand, two hundred fifty".