55121703 has 16 divisors (see below), whose sum is σ = 90456576. Its totient is φ = 29075040.

The previous prime is 55121699. The next prime is 55121719. The reversal of 55121703 is 30712155.

55121703 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55121703 - 2² = 55121699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55121723) 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, 100683 + ... + 101228.

It is an arithmetic number, because the mean of its divisors is an integer number (5653536).

Almost surely, 2^55121703 is an apocalyptic number.

55121703 is a deficient number, since it is larger than the sum of its proper divisors (35334873).

55121703 is a wasteful number, since it uses less digits than its factorization.

55121703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201934.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 55121703 is about 7424.3991676095. The cubic root of 55121703 is about 380.5755429011.

Adding to 55121703 its reverse (30712155), we get a palindrome (85833858).

The spelling of 55121703 in words is "fifty-five million, one hundred twenty-one thousand, seven hundred three".