54242447 has 4 divisors (see below), whose sum is σ = 61991376. Its totient is φ = 46493520.

The previous prime is 54242437. The next prime is 54242449. The reversal of 54242447 is 74424245.

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 54242447 - 2²⁴ = 37465231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54242449) 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, 3874454 + ... + 3874467.

It is an arithmetic number, because the mean of its divisors is an integer number (15497844).

Almost surely, 2^54242447 is an apocalyptic number.

54242447 is a deficient number, since it is larger than the sum of its proper divisors (7748929).

54242447 is an equidigital number, since it uses as much as digits as its factorization.

54242447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7748928.

The product of its digits is 35840, while the sum is 32.

The square root of 54242447 is about 7364.9471824311. The cubic root of 54242447 is about 378.5411447134.

The spelling of 54242447 in words is "fifty-four million, two hundred forty-two thousand, four hundred forty-seven".