51470817 has 8 divisors (see below), whose sum is σ = 69152160. Its totient is φ = 34051680.

The previous prime is 51470777. The next prime is 51470821. The reversal of 51470817 is 71807415.

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

It is not a de Polignac number, because 51470817 - 2¹² = 51466721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51470017) 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 7 ways as a sum of consecutive naturals, for example, 65092 + ... + 65877.

It is an arithmetic number, because the mean of its divisors is an integer number (8644020).

Almost surely, 2^51470817 is an apocalyptic number.

It is an amenable number.

51470817 is a deficient number, since it is larger than the sum of its proper divisors (17681343).

51470817 is a wasteful number, since it uses less digits than its factorization.

51470817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131103.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 51470817 is about 7174.3164831223. The cubic root of 51470817 is about 371.9806542720.

The spelling of 51470817 in words is "fifty-one million, four hundred seventy thousand, eight hundred seventeen".