55030250 has 32 divisors (see below), whose sum is σ = 112387392. Its totient is φ = 20010000.

The previous prime is 55030231. The next prime is 55030253. The reversal of 55030250 is 5203055.

It is not an unprimeable number, because it can be changed into a prime (55030253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7256 + ... + 12755.

It is an arithmetic number, because the mean of its divisors is an integer number (3512106).

Almost surely, 2^55030250 is an apocalyptic number.

55030250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55030250 is an abundant number, since it is smaller than the sum of its proper divisors (57357142).

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

55030250 is a wasteful number, since it uses less digits than its factorization.

55030250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20039 (or 20029 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 55030250 is about 7418.2376613317. The cubic root of 55030250 is about 380.3649540930.

The spelling of 55030250 in words is "fifty-five million, thirty thousand, two hundred fifty".