51659323 has 2 divisors, whose sum is σ = 51659324. Its totient is φ = 51659322.

The previous prime is 51659317. The next prime is 51659359. The reversal of 51659323 is 32395615.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51659323 - 2⁵ = 51659291 is a prime.

It is not a weakly prime, because it can be changed into another prime (51659393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25829661 + 25829662.

It is an arithmetic number, because the mean of its divisors is an integer number (25829662).

Almost surely, 2^51659323 is an apocalyptic number.

51659323 is a deficient number, since it is larger than the sum of its proper divisors (1).

51659323 is an equidigital number, since it uses as much as digits as its factorization.

51659323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 34.

The square root of 51659323 is about 7187.4420345489. The cubic root of 51659323 is about 372.4342132669.

The spelling of 51659323 in words is "fifty-one million, six hundred fifty-nine thousand, three hundred twenty-three".