54090243 has 12 divisors (see below), whose sum is σ = 82726488. Its totient is φ = 33938880.

The previous prime is 54090217. The next prime is 54090271. The reversal of 54090243 is 34209045.

It is not a de Polignac number, because 54090243 - 2⁹ = 54089731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54090343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176613 + ... + 176918.

It is an arithmetic number, because the mean of its divisors is an integer number (6893874).

Almost surely, 2^54090243 is an apocalyptic number.

54090243 is a deficient number, since it is larger than the sum of its proper divisors (28636245).

54090243 is a wasteful number, since it uses less digits than its factorization.

54090243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353554 (or 353551 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 54090243 is about 7354.6069235548. The cubic root of 54090243 is about 378.1867515932.

Adding to 54090243 its reverse (34209045), we get a palindrome (88299288).

The spelling of 54090243 in words is "fifty-four million, ninety thousand, two hundred forty-three".