51599 has 2 divisors, whose sum is σ = 51600. Its totient is φ = 51598.

The previous prime is 51593. The next prime is 51607. The reversal of 51599 is 99515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51599 - 2⁸ = 51343 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25799 + 25800.

It is an arithmetic number, because the mean of its divisors is an integer number (25800).

2⁵¹⁵⁹⁹ is an apocalyptic number.

51599 is a deficient number, since it is larger than the sum of its proper divisors (1).

51599 is an equidigital number, since it uses as much as digits as its factorization.

51599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2025, while the sum is 29.

The square root of 51599 is about 227.1541326941. The cubic root of 51599 is about 37.2289192013.

The spelling of 51599 in words is "fifty-one thousand, five hundred ninety-nine".