55259911 has 16 divisors (see below), whose sum is σ = 67189824. Its totient is φ = 44365824.

The previous prime is 55259873. The next prime is 55259917. The reversal of 55259911 is 11995255.

55259911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55259911 - 2⁷ = 55259783 is a prime.

It is a Duffinian number.

Its product of digits (20250) is a multiple of the sum of its prime divisors (2250).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55259917) 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 15 ways as a sum of consecutive naturals, for example, 26731 + ... + 28723.

It is an arithmetic number, because the mean of its divisors is an integer number (4199364).

Almost surely, 2^55259911 is an apocalyptic number.

55259911 is a deficient number, since it is larger than the sum of its proper divisors (11929913).

55259911 is a wasteful number, since it uses less digits than its factorization.

55259911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250.

The product of its digits is 20250, while the sum is 37.

The square root of 55259911 is about 7433.7010297698. The cubic root of 55259911 is about 380.8933529005.

The spelling of 55259911 in words is "fifty-five million, two hundred fifty-nine thousand, nine hundred eleven".