51001017 has 4 divisors (see below), whose sum is σ = 68001360. Its totient is φ = 34000676.

The previous prime is 51001009. The next prime is 51001031. The reversal of 51001017 is 71010015.

51001017 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51001017 - 2³ = 51001009 is a prime.

It is a super-2 number, since 2×51001017² = 5202207470068578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51000987 and 51001005.

It is not an unprimeable number, because it can be changed into a prime (53001017) 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, 8500167 + ... + 8500172.

It is an arithmetic number, because the mean of its divisors is an integer number (17000340).

Almost surely, 2^51001017 is an apocalyptic number.

It is an amenable number.

51001017 is a deficient number, since it is larger than the sum of its proper divisors (17000343).

51001017 is a wasteful number, since it uses less digits than its factorization.

51001017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17000342.

The product of its (nonzero) digits is 35, while the sum is 15.

The square root of 51001017 is about 7141.4996324302. The cubic root of 51001017 is about 370.8454419253.

The spelling of 51001017 in words is "fifty-one million, one thousand, seventeen".