51307241 has 8 divisors (see below), whose sum is σ = 54422784. Its totient is φ = 48202560.

The previous prime is 51307237. The next prime is 51307253. The reversal of 51307241 is 14270315.

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

It is a cyclic number.

It is not a de Polignac number, because 51307241 - 2² = 51307237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51307231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8336 + ... + 13118.

It is an arithmetic number, because the mean of its divisors is an integer number (6802848).

Almost surely, 2^51307241 is an apocalyptic number.

It is an amenable number.

51307241 is a deficient number, since it is larger than the sum of its proper divisors (3115543).

51307241 is a wasteful number, since it uses less digits than its factorization.

51307241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 51307241 is about 7162.9073008102. The cubic root of 51307241 is about 371.5861803859.

Adding to 51307241 its reverse (14270315), we get a palindrome (65577556).

The spelling of 51307241 in words is "fifty-one million, three hundred seven thousand, two hundred forty-one".