51709241 has 12 divisors (see below), whose sum is σ = 55825200. Its totient is φ = 47763360.

The previous prime is 51709211. The next prime is 51709253. The reversal of 51709241 is 14290715.

It is not a de Polignac number, because 51709241 - 2²² = 47514937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51709211) 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 11 ways as a sum of consecutive naturals, for example, 31130 + ... + 32748.

It is an arithmetic number, because the mean of its divisors is an integer number (4652100).

Almost surely, 2^51709241 is an apocalyptic number.

It is an amenable number.

51709241 is a deficient number, since it is larger than the sum of its proper divisors (4115959).

51709241 is a wasteful number, since it uses less digits than its factorization.

51709241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720 (or 1679 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 51709241 is about 7190.9137805984. The cubic root of 51709241 is about 372.5541347385.

Adding to 51709241 its reverse (14290715), we get a palindrome (65999956).

The spelling of 51709241 in words is "fifty-one million, seven hundred nine thousand, two hundred forty-one".