54243643 has 8 divisors (see below), whose sum is σ = 54813600. Its totient is φ = 53676480.

The previous prime is 54243587. The next prime is 54243649. The reversal of 54243643 is 34634245.

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

It is a cyclic number.

It is not a de Polignac number, because 54243643 - 2¹⁷ = 54112571 is a prime.

It is a super-2 number, since 2×54243643² = 5884745611822898, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 81733 + ... + 82393.

It is an arithmetic number, because the mean of its divisors is an integer number (6851700).

Almost surely, 2^54243643 is an apocalyptic number.

54243643 is a deficient number, since it is larger than the sum of its proper divisors (569957).

54243643 is a wasteful number, since it uses less digits than its factorization.

54243643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397.

The product of its digits is 34560, while the sum is 31.

The square root of 54243643 is about 7365.0283774063. The cubic root of 54243643 is about 378.5439268635.

Adding to 54243643 its reverse (34634245), we get a palindrome (88877888).

The spelling of 54243643 in words is "fifty-four million, two hundred forty-three thousand, six hundred forty-three".