55250311 has 4 divisors (see below), whose sum is σ = 55266400. Its totient is φ = 55234224.

The previous prime is 55250291. The next prime is 55250353. The reversal of 55250311 is 11305255.

55250311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55250311 - 2⁷ = 55250183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250011) 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 3 ways as a sum of consecutive naturals, for example, 591 + ... + 10528.

It is an arithmetic number, because the mean of its divisors is an integer number (13816600).

Almost surely, 2^55250311 is an apocalyptic number.

55250311 is a deficient number, since it is larger than the sum of its proper divisors (16089).

55250311 is a wasteful number, since it uses less digits than its factorization.

55250311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16088.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 55250311 is about 7433.0552937537. The cubic root of 55250311 is about 380.8712947883.

Adding to 55250311 its reverse (11305255), we get a palindrome (66555566).

The spelling of 55250311 in words is "fifty-five million, two hundred fifty thousand, three hundred eleven".