54646643 has 8 divisors (see below), whose sum is σ = 58989600. Its totient is φ = 50467648.

The previous prime is 54646589. The next prime is 54646651. The reversal of 54646643 is 34664645.

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 54646643 - 2²⁰ = 53598067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54646597 and 54646606.

It is not an unprimeable number, because it can be changed into a prime (54646243) 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, 40298 + ... + 41631.

It is an arithmetic number, because the mean of its divisors is an integer number (7373700).

Almost surely, 2^54646643 is an apocalyptic number.

54646643 is a deficient number, since it is larger than the sum of its proper divisors (4342957).

54646643 is a wasteful number, since it uses less digits than its factorization.

54646643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81981.

The product of its digits is 207360, while the sum is 38.

The square root of 54646643 is about 7392.3367753370. The cubic root of 54646643 is about 379.4790715226.

The spelling of 54646643 in words is "fifty-four million, six hundred forty-six thousand, six hundred forty-three".