51032717 has 4 divisors (see below), whose sum is σ = 51300096. Its totient is φ = 50765340.

The previous prime is 51032711. The next prime is 51032719. The reversal of 51032717 is 71723015.

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 a de Polignac number, because none of the positive numbers 2^k-51032717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51032711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133403 + ... + 133784.

It is an arithmetic number, because the mean of its divisors is an integer number (12825024).

Almost surely, 2^51032717 is an apocalyptic number.

It is an amenable number.

51032717 is a deficient number, since it is larger than the sum of its proper divisors (267379).

51032717 is a wasteful number, since it uses less digits than its factorization.

51032717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267378.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 51032717 is about 7143.7187094678. The cubic root of 51032717 is about 370.9222597773.

The spelling of 51032717 in words is "fifty-one million, thirty-two thousand, seven hundred seventeen".