54739 has 8 divisors (see below), whose sum is σ = 59840. Its totient is φ = 49896.

The previous prime is 54727. The next prime is 54751. The reversal of 54739 is 93745.

54739 = T₂ + T₃ + ... + T₆₈.

54739 = 93² + 94² + ... + 98².

It is an interprime number because it is at equal distance from previous prime (54727) and next prime (54751).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54739 - 2¹¹ = 52691 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (54709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784 + ... + 850.

It is an arithmetic number, because the mean of its divisors is an integer number (7480).

2⁵⁴⁷³⁹ is an apocalyptic number.

54739 is a deficient number, since it is larger than the sum of its proper divisors (5101).

54739 is a wasteful number, since it uses less digits than its factorization.

54739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129.

The product of its digits is 3780, while the sum is 28.

The square root of 54739 is about 233.9636723938. The cubic root of 54739 is about 37.9692734070.

The spelling of 54739 in words is "fifty-four thousand, seven hundred thirty-nine".