51733481 has 2 divisors, whose sum is σ = 51733482. Its totient is φ = 51733480.

The previous prime is 51733469. The next prime is 51733519. The reversal of 51733481 is 18433715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50993881 + 739600 = 7141^2 + 860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51733481 is a prime.

It is a super-2 number, since 2×51733481² = 5352706112754722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51733081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25866740 + 25866741.

It is an arithmetic number, because the mean of its divisors is an integer number (25866741).

Almost surely, 2^51733481 is an apocalyptic number.

It is an amenable number.

51733481 is a deficient number, since it is larger than the sum of its proper divisors (1).

51733481 is an equidigital number, since it uses as much as digits as its factorization.

51733481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 51733481 is about 7192.5990434613. The cubic root of 51733481 is about 372.6123403338.

The spelling of 51733481 in words is "fifty-one million, seven hundred thirty-three thousand, four hundred eighty-one".