54443391 has 8 divisors (see below), whose sum is σ = 74553264. Its totient is φ = 35314560.

The previous prime is 54443383. The next prime is 54443407. The reversal of 54443391 is 19334445.

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

It is not a de Polignac number, because 54443391 - 2³ = 54443383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54443491) 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, 245130 + ... + 245351.

It is an arithmetic number, because the mean of its divisors is an integer number (9319158).

Almost surely, 2^54443391 is an apocalyptic number.

54443391 is a deficient number, since it is larger than the sum of its proper divisors (20109873).

54443391 is a wasteful number, since it uses less digits than its factorization.

54443391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490521.

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

The square root of 54443391 is about 7378.5764887273. The cubic root of 54443391 is about 379.0080105426.

The spelling of 54443391 in words is "fifty-four million, four hundred forty-three thousand, three hundred ninety-one".