54491749 has 8 divisors (see below), whose sum is σ = 62135640. Its totient is φ = 47341056.

The previous prime is 54491743. The next prime is 54491771. The reversal of 54491749 is 94719445.

It can be written as a sum of positive squares in 4 ways, for example, as 6466849 + 48024900 = 2543^2 + 6930^2 .

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

It is not a de Polignac number, because 54491749 - 2¹³ = 54483557 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 (54491743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123064 + ... + 123505.

It is an arithmetic number, because the mean of its divisors is an integer number (7766955).

Almost surely, 2^54491749 is an apocalyptic number.

It is an amenable number.

54491749 is a deficient number, since it is larger than the sum of its proper divisors (7643891).

54491749 is a wasteful number, since it uses less digits than its factorization.

54491749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246599.

The product of its digits is 181440, while the sum is 43.

The square root of 54491749 is about 7381.8526807300. The cubic root of 54491749 is about 379.1201921758.

The spelling of 54491749 in words is "fifty-four million, four hundred ninety-one thousand, seven hundred forty-nine".