53731 has 2 divisors, whose sum is σ = 53732. Its totient is φ = 53730.

The previous prime is 53719. The next prime is 53759. The reversal of 53731 is 13735.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53731 - 2⁵ = 53699 is a prime.

It is a super-2 number, since 2×53731² = 5774040722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 53699 and 53708.

It is not a weakly prime, because it can be changed into another prime (53791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26865 + 26866.

It is an arithmetic number, because the mean of its divisors is an integer number (26866).

2⁵³⁷³¹ is an apocalyptic number.

53731 is a deficient number, since it is larger than the sum of its proper divisors (1).

53731 is an equidigital number, since it uses as much as digits as its factorization.

53731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 315, while the sum is 19.

The square root of 53731 is about 231.7994823118. The cubic root of 53731 is about 37.7347642566.

It can be divided in two parts, 53 and 731, that added together give a square (784 = 28²).

The spelling of 53731 in words is "fifty-three thousand, seven hundred thirty-one".