51254227 has 4 divisors (see below), whose sum is σ = 51325456. Its totient is φ = 51183000.

The previous prime is 51254207. The next prime is 51254239. The reversal of 51254227 is 72245215.

51254227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-51254227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51254195 and 51254204.

It is not an unprimeable number, because it can be changed into a prime (51254207) 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 3 ways as a sum of consecutive naturals, for example, 34524 + ... + 35977.

It is an arithmetic number, because the mean of its divisors is an integer number (12831364).

Almost surely, 2^51254227 is an apocalyptic number.

51254227 is a deficient number, since it is larger than the sum of its proper divisors (71229).

51254227 is an equidigital number, since it uses as much as digits as its factorization.

51254227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71228.

The product of its digits is 5600, while the sum is 28.

The square root of 51254227 is about 7159.2057520370. The cubic root of 51254227 is about 371.4581538921.

The spelling of 51254227 in words is "fifty-one million, two hundred fifty-four thousand, two hundred twenty-seven".