51235103 has 4 divisors (see below), whose sum is σ = 51256920. Its totient is φ = 51213288.

The previous prime is 51235097. The next prime is 51235111. The reversal of 51235103 is 30153215.

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 51235103 - 2¹² = 51231007 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 (51235133) 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, 6893 + ... + 12246.

It is an arithmetic number, because the mean of its divisors is an integer number (12814230).

Almost surely, 2^51235103 is an apocalyptic number.

51235103 is a deficient number, since it is larger than the sum of its proper divisors (21817).

51235103 is a wasteful number, since it uses less digits than its factorization.

51235103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21816.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 51235103 is about 7157.8700044077. The cubic root of 51235103 is about 371.4119486010.

Adding to 51235103 its reverse (30153215), we get a palindrome (81388318).

The spelling of 51235103 in words is "fifty-one million, two hundred thirty-five thousand, one hundred three".