51733393 has 2 divisors, whose sum is σ = 51733394. Its totient is φ = 51733392.

The previous prime is 51733391. The next prime is 51733399. The reversal of 51733393 is 39333715.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51667344 + 66049 = 7188^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 51733393 - 2¹ = 51733391 is a prime.

Together with 51733391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51733391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25866696 + 25866697.

It is an arithmetic number, because the mean of its divisors is an integer number (25866697).

Almost surely, 2^51733393 is an apocalyptic number.

It is an amenable number.

51733393 is a deficient number, since it is larger than the sum of its proper divisors (1).

51733393 is an equidigital number, since it uses as much as digits as its factorization.

51733393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25515, while the sum is 34.

The square root of 51733393 is about 7192.5929260594. The cubic root of 51733393 is about 372.6121290593.

The spelling of 51733393 in words is "fifty-one million, seven hundred thirty-three thousand, three hundred ninety-three".