54997243 has 8 divisors (see below), whose sum is σ = 62898912. Its totient is φ = 47106816.

The previous prime is 54997237. The next prime is 54997247. The reversal of 54997243 is 34279945.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54997243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54997243.

It is not an unprimeable number, because it can be changed into a prime (54997247) 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, 17121 + ... + 20077.

It is an arithmetic number, because the mean of its divisors is an integer number (7862364).

Almost surely, 2^54997243 is an apocalyptic number.

54997243 is a deficient number, since it is larger than the sum of its proper divisors (7901669).

54997243 is a wasteful number, since it uses less digits than its factorization.

54997243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5621.

The product of its digits is 272160, while the sum is 43.

The square root of 54997243 is about 7416.0126078641. The cubic root of 54997243 is about 380.2888915821.

The spelling of 54997243 in words is "fifty-four million, nine hundred ninety-seven thousand, two hundred forty-three".