55250103 has 4 divisors (see below), whose sum is σ = 73666808. Its totient is φ = 36833400.

The previous prime is 55250101. The next prime is 55250159. The reversal of 55250103 is 30105255.

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

It is not a de Polignac number, because 55250103 - 2¹ = 55250101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55250103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9208348 + ... + 9208353.

It is an arithmetic number, because the mean of its divisors is an integer number (18416702).

Almost surely, 2^55250103 is an apocalyptic number.

55250103 is a deficient number, since it is larger than the sum of its proper divisors (18416705).

55250103 is a wasteful number, since it uses less digits than its factorization.

55250103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18416704.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 55250103 is about 7433.0413021858. The cubic root of 55250103 is about 380.8708168343.

Adding to 55250103 its reverse (30105255), we get a palindrome (85355358).

The spelling of 55250103 in words is "fifty-five million, two hundred fifty thousand, one hundred three".