51282103 has 4 divisors (see below), whose sum is σ = 52532928. Its totient is φ = 50031280.

The previous prime is 51282079. The next prime is 51282113. The reversal of 51282103 is 30128215.

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 51282103 - 2⁵ = 51282071 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 (51282113) 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, 625351 + ... + 625432.

It is an arithmetic number, because the mean of its divisors is an integer number (13133232).

Almost surely, 2^51282103 is an apocalyptic number.

51282103 is a deficient number, since it is larger than the sum of its proper divisors (1250825).

51282103 is a wasteful number, since it uses less digits than its factorization.

51282103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250824.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 51282103 is about 7161.1523514027. The cubic root of 51282103 is about 371.5254842141.

The spelling of 51282103 in words is "fifty-one million, two hundred eighty-two thousand, one hundred three".