54318729 has 8 divisors (see below), whose sum is σ = 72474400. Its totient is φ = 36187776.

The previous prime is 54318721. The next prime is 54318751. The reversal of 54318729 is 92781345.

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

It is not a de Polignac number, because 54318729 - 2³ = 54318721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54318721) 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, 232 + ... + 10425.

It is an arithmetic number, because the mean of its divisors is an integer number (9059300).

Almost surely, 2^54318729 is an apocalyptic number.

It is an amenable number.

54318729 is a deficient number, since it is larger than the sum of its proper divisors (18155671).

54318729 is a wasteful number, since it uses less digits than its factorization.

54318729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12359.

The product of its digits is 60480, while the sum is 39.

The square root of 54318729 is about 7370.1240830803. The cubic root of 54318729 is about 378.7185110355.

The spelling of 54318729 in words is "fifty-four million, three hundred eighteen thousand, seven hundred twenty-nine".