54690243 has 4 divisors (see below), whose sum is σ = 72920328. Its totient is φ = 36460160.

The previous prime is 54690193. The next prime is 54690247. The reversal of 54690243 is 34209645.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54690243 - 2⁶ = 54690179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54690247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9115038 + ... + 9115043.

It is an arithmetic number, because the mean of its divisors is an integer number (18230082).

Almost surely, 2^54690243 is an apocalyptic number.

54690243 is a deficient number, since it is larger than the sum of its proper divisors (18230085).

54690243 is a wasteful number, since it uses less digits than its factorization.

54690243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18230084.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 54690243 is about 7395.2851871987. The cubic root of 54690243 is about 379.5799675601.

Adding to 54690243 its reverse (34209645), we get a palindrome (88899888).

The spelling of 54690243 in words is "fifty-four million, six hundred ninety thousand, two hundred forty-three".