54243749 has 8 divisors (see below), whose sum is σ = 62038080. Its totient is φ = 46460736.

The previous prime is 54243733. The next prime is 54243793. The reversal of 54243749 is 94734245.

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

It is not a de Polignac number, because 54243749 - 2⁴ = 54243733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54243799) 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, 14717 + ... + 18029.

It is an arithmetic number, because the mean of its divisors is an integer number (7754760).

Almost surely, 2^54243749 is an apocalyptic number.

It is an amenable number.

54243749 is a deficient number, since it is larger than the sum of its proper divisors (7794331).

54243749 is a wasteful number, since it uses less digits than its factorization.

54243749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5659.

The product of its digits is 120960, while the sum is 38.

The square root of 54243749 is about 7365.0355735733. The cubic root of 54243749 is about 378.5441734400.

The spelling of 54243749 in words is "fifty-four million, two hundred forty-three thousand, seven hundred forty-nine".