51320341 has 4 divisors (see below), whose sum is σ = 51336684. Its totient is φ = 51304000.

The previous prime is 51320333. The next prime is 51320351. The reversal of 51320341 is 14302315.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51065316 + 255025 = 7146^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 51320341 - 2³ = 51320333 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 (51320351) 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, 1810 + ... + 10291.

It is an arithmetic number, because the mean of its divisors is an integer number (12834171).

Almost surely, 2^51320341 is an apocalyptic number.

It is an amenable number.

51320341 is a deficient number, since it is larger than the sum of its proper divisors (16343).

51320341 is a wasteful number, since it uses less digits than its factorization.

51320341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16342.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 51320341 is about 7163.8216756142. The cubic root of 51320341 is about 371.6178027238.

Adding to 51320341 its reverse (14302315), we get a palindrome (65622656).

The spelling of 51320341 in words is "fifty-one million, three hundred twenty thousand, three hundred forty-one".