51335351 has 4 divisors (see below), whose sum is σ = 51517032. Its totient is φ = 51153672.

The previous prime is 51335329. The next prime is 51335353. The reversal of 51335351 is 15353315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15353315 = 5 ⋅3070663.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51335351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51335351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51335353) 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, 90416 + ... + 90981.

It is an arithmetic number, because the mean of its divisors is an integer number (12879258).

Almost surely, 2^51335351 is an apocalyptic number.

51335351 is a deficient number, since it is larger than the sum of its proper divisors (181681).

51335351 is a wasteful number, since it uses less digits than its factorization.

51335351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181680.

The product of its digits is 3375, while the sum is 26.

The square root of 51335351 is about 7164.8692242078. The cubic root of 51335351 is about 371.6540290322.

Adding to 51335351 its reverse (15353315), we get a palindrome (66688666).

The spelling of 51335351 in words is "fifty-one million, three hundred thirty-five thousand, three hundred fifty-one".