51054403 has 4 divisors (see below), whose sum is σ = 51397200. Its totient is φ = 50711608.

The previous prime is 51054397. The next prime is 51054439. The reversal of 51054403 is 30445015.

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-51054403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51094403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171175 + ... + 171472.

It is an arithmetic number, because the mean of its divisors is an integer number (12849300).

Almost surely, 2^51054403 is an apocalyptic number.

51054403 is a deficient number, since it is larger than the sum of its proper divisors (342797).

51054403 is a wasteful number, since it uses less digits than its factorization.

51054403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342796.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 51054403 is about 7145.2363851730. The cubic root of 51054403 is about 370.9747926195.

Adding to 51054403 its reverse (30445015), we get a palindrome (81499418).

The spelling of 51054403 in words is "fifty-one million, fifty-four thousand, four hundred three".