54421817 has 8 divisors (see below), whose sum is σ = 56077056. Its totient is φ = 52787392.

The previous prime is 54421769. The next prime is 54421823. The reversal of 54421817 is 71812445.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54421817 - 2¹² = 54417721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54421867) 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, 188 + ... + 10434.

It is an arithmetic number, because the mean of its divisors is an integer number (7009632).

Almost surely, 2^54421817 is an apocalyptic number.

It is an amenable number.

54421817 is a deficient number, since it is larger than the sum of its proper divisors (1655239).

54421817 is a wasteful number, since it uses less digits than its factorization.

54421817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10407.

The product of its digits is 8960, while the sum is 32.

The square root of 54421817 is about 7377.1144087644. The cubic root of 54421817 is about 378.9579414160.

The spelling of 54421817 in words is "fifty-four million, four hundred twenty-one thousand, eight hundred seventeen".