51822267 has 16 divisors (see below), whose sum is σ = 80805120. Its totient is φ = 28923552.

The previous prime is 51822263. The next prime is 51822283. The reversal of 51822267 is 76222815.

It is not a de Polignac number, because 51822267 - 2² = 51822263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51822263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27792 + ... + 29597.

It is an arithmetic number, because the mean of its divisors is an integer number (5050320).

Almost surely, 2^51822267 is an apocalyptic number.

51822267 is a deficient number, since it is larger than the sum of its proper divisors (28982853).

51822267 is a wasteful number, since it uses less digits than its factorization.

51822267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57442.

The product of its digits is 13440, while the sum is 33.

The square root of 51822267 is about 7198.7684363369. The cubic root of 51822267 is about 372.8253800061.

The spelling of 51822267 in words is "fifty-one million, eight hundred twenty-two thousand, two hundred sixty-seven".