51803427 has 16 divisors (see below), whose sum is σ = 74977280. Its totient is φ = 31624992.

The previous prime is 51803413. The next prime is 51803473. The reversal of 51803427 is 72430815.

51803427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51803427 - 2⁷ = 51803299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51803394 and 51803403.

It is not an unprimeable number, because it can be changed into a prime (51803407) 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 15 ways as a sum of consecutive naturals, for example, 277 + ... + 10182.

It is an arithmetic number, because the mean of its divisors is an integer number (4686080).

Almost surely, 2^51803427 is an apocalyptic number.

51803427 is a deficient number, since it is larger than the sum of its proper divisors (23173853).

51803427 is a wasteful number, since it uses less digits than its factorization.

51803427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10602.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 51803427 is about 7197.4597602210. The cubic root of 51803427 is about 372.7801942721.

The spelling of 51803427 in words is "fifty-one million, eight hundred three thousand, four hundred twenty-seven".