54821243 has 8 divisors (see below), whose sum is σ = 58118112. Its totient is φ = 51532416.

The previous prime is 54821233. The next prime is 54821267. The reversal of 54821243 is 34212845.

It is a happy number.

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 54821243 - 2⁴ = 54821227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54821233) 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, 17546 + ... + 20432.

It is an arithmetic number, because the mean of its divisors is an integer number (7264764).

Almost surely, 2^54821243 is an apocalyptic number.

54821243 is a deficient number, since it is larger than the sum of its proper divisors (3296869).

54821243 is a wasteful number, since it uses less digits than its factorization.

54821243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021.

The product of its digits is 7680, while the sum is 29.

The square root of 54821243 is about 7404.1368842020. The cubic root of 54821243 is about 379.8827962644.

The spelling of 54821243 in words is "fifty-four million, eight hundred twenty-one thousand, two hundred forty-three".