51466827 has 4 divisors (see below), whose sum is σ = 68622440. Its totient is φ = 34311216.

The previous prime is 51466817. The next prime is 51466843. The reversal of 51466827 is 72866415.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51466827 - 2¹⁵ = 51434059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51466817) 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, 8577802 + ... + 8577807.

It is an arithmetic number, because the mean of its divisors is an integer number (17155610).

Almost surely, 2^51466827 is an apocalyptic number.

51466827 is a deficient number, since it is larger than the sum of its proper divisors (17155613).

51466827 is a wasteful number, since it uses less digits than its factorization.

51466827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17155612.

The product of its digits is 80640, while the sum is 39.

The square root of 51466827 is about 7174.0384024620. The cubic root of 51466827 is about 371.9710420862.

The spelling of 51466827 in words is "fifty-one million, four hundred sixty-six thousand, eight hundred twenty-seven".