54788243 has 2 divisors, whose sum is σ = 54788244. Its totient is φ = 54788242.

The previous prime is 54788233. The next prime is 54788249. The reversal of 54788243 is 34288745.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54788243 - 2¹⁸ = 54526099 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54788243.

It is not a weakly prime, because it can be changed into another prime (54788249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27394121 + 27394122.

It is an arithmetic number, because the mean of its divisors is an integer number (27394122).

Almost surely, 2^54788243 is an apocalyptic number.

54788243 is a deficient number, since it is larger than the sum of its proper divisors (1).

54788243 is an equidigital number, since it uses as much as digits as its factorization.

54788243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 41.

The square root of 54788243 is about 7401.9080648168. The cubic root of 54788243 is about 379.8065566668.

It can be divided in two parts, 5478 and 8243, that multiplied together give a palindrome (45155154).

The spelling of 54788243 in words is "fifty-four million, seven hundred eighty-eight thousand, two hundred forty-three".