51866227 has 8 divisors (see below), whose sum is σ = 59863392. Its totient is φ = 44016000.

The previous prime is 51866197. The next prime is 51866231. The reversal of 51866227 is 72266815.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51866227 - 2¹¹ = 51864179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51866237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35974 + ... + 37387.

It is an arithmetic number, because the mean of its divisors is an integer number (7482924).

Almost surely, 2^51866227 is an apocalyptic number.

51866227 is a deficient number, since it is larger than the sum of its proper divisors (7997165).

51866227 is a wasteful number, since it uses less digits than its factorization.

51866227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73469.

The product of its digits is 40320, while the sum is 37.

The square root of 51866227 is about 7201.8210891413. The cubic root of 51866227 is about 372.9307708130.

The spelling of 51866227 in words is "fifty-one million, eight hundred sixty-six thousand, two hundred twenty-seven".