54243659 has 6 divisors (see below), whose sum is σ = 56179500. Its totient is φ = 52372376.

The previous prime is 54243649. The next prime is 54243667. The reversal of 54243659 is 95634245.

It is not a de Polignac number, because 54243659 - 2²⁰ = 53195083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54243649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31409 + ... + 33090.

It is an arithmetic number, because the mean of its divisors is an integer number (9363250).

Almost surely, 2^54243659 is an apocalyptic number.

54243659 is a deficient number, since it is larger than the sum of its proper divisors (1935841).

54243659 is an equidigital number, since it uses as much as digits as its factorization.

54243659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64557 (or 64528 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 54243659 is about 7365.0294636206. The cubic root of 54243659 is about 378.5439640826.

The spelling of 54243659 in words is "fifty-four million, two hundred forty-three thousand, six hundred fifty-nine".