51103673 has 4 divisors (see below), whose sum is σ = 53793360. Its totient is φ = 48413988.

The previous prime is 51103621. The next prime is 51103709. The reversal of 51103673 is 37630115.

It is a happy number.

51103673 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51103673 - 2⁶ = 51103609 is a prime.

It is a super-2 number, since 2×51103673² = 5223170788181858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51103373) 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, 1344815 + ... + 1344852.

It is an arithmetic number, because the mean of its divisors is an integer number (13448340).

Almost surely, 2^51103673 is an apocalyptic number.

It is an amenable number.

51103673 is a deficient number, since it is larger than the sum of its proper divisors (2689687).

51103673 is a wasteful number, since it uses less digits than its factorization.

51103673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689686.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 51103673 is about 7148.6833053367. The cubic root of 51103673 is about 371.0940905344.

Adding to 51103673 its reverse (37630115), we get a palindrome (88733788).

The spelling of 51103673 in words is "fifty-one million, one hundred three thousand, six hundred seventy-three".