51250103 has 4 divisors (see below), whose sum is σ = 51266448. Its totient is φ = 51233760.

The previous prime is 51250097. The next prime is 51250117. The reversal of 51250103 is 30105215.

51250103 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 a de Polignac number, because none of the positive numbers 2^k-51250103 is a prime.

It is a super-3 number, since 3×51250103³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51250153) 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, 1826 + ... + 10287.

It is an arithmetic number, because the mean of its divisors is an integer number (12816612).

Almost surely, 2^51250103 is an apocalyptic number.

51250103 is a deficient number, since it is larger than the sum of its proper divisors (16345).

51250103 is a wasteful number, since it uses less digits than its factorization.

51250103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16344.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 51250103 is about 7158.9177254666. The cubic root of 51250103 is about 371.4481909121.

Adding to 51250103 its reverse (30105215), we get a palindrome (81355318).

The spelling of 51250103 in words is "fifty-one million, two hundred fifty thousand, one hundred three".