55250030 has 32 divisors (see below), whose sum is σ = 109587168. Its totient is φ = 19888000.

The previous prime is 55250011. The next prime is 55250047. The reversal of 55250030 is 3005255.

55250030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55249984 and 55250011.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 8624 + ... + 13596.

It is an arithmetic number, because the mean of its divisors is an integer number (3424599).

Almost surely, 2^55250030 is an apocalyptic number.

55250030 is a deficient number, since it is larger than the sum of its proper divisors (54337138).

55250030 is a wasteful number, since it uses less digits than its factorization.

55250030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092.

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

The square root of 55250030 is about 7433.0363916774. The cubic root of 55250030 is about 380.8706490905.

Adding to 55250030 its reverse (3005255), we get a palindrome (58255285).

The spelling of 55250030 in words is "fifty-five million, two hundred fifty thousand, thirty".