53739 has 12 divisors (see below), whose sum is σ = 88816. Its totient is φ = 30672.

The previous prime is 53731. The next prime is 53759. The reversal of 53739 is 93735.

It is not a de Polignac number, because 53739 - 2³ = 53731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364 + ... + 489.

2⁵³⁷³⁹ is an apocalyptic number.

53739 is a deficient number, since it is larger than the sum of its proper divisors (35077).

53739 is a wasteful number, since it uses less digits than its factorization.

53739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 863 counting only the distinct ones).

The product of its digits is 2835, while the sum is 27.

The square root of 53739 is about 231.8167379634. The cubic root of 53739 is about 37.7366369380.

It can be divided in two parts, 537 and 39, that added together give a square (576 = 24²).

The spelling of 53739 in words is "fifty-three thousand, seven hundred thirty-nine".