51695 has 12 divisors (see below), whose sum is σ = 72504. Its totient is φ = 35280.

The previous prime is 51691. The next prime is 51713. The reversal of 51695 is 59615.

It is not a de Polignac number, because 51695 - 2² = 51691 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51691) 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 in 11 ways as a sum of consecutive naturals, for example, 140 + ... + 350.

It is an arithmetic number, because the mean of its divisors is an integer number (6042).

2⁵¹⁶⁹⁵ is an apocalyptic number.

51695 is a deficient number, since it is larger than the sum of its proper divisors (20809).

51695 is a wasteful number, since it uses less digits than its factorization.

51695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 223 counting only the distinct ones).

The product of its digits is 1350, while the sum is 26.

The square root of 51695 is about 227.3653447648. The cubic root of 51695 is about 37.2519930468.

The spelling of 51695 in words is "fifty-one thousand, six hundred ninety-five".