54031643 has 4 divisors (see below), whose sum is σ = 54046560. Its totient is φ = 54016728.

The previous prime is 54031631. The next prime is 54031651. The reversal of 54031643 is 34613045.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54031643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54031603) 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, 1838 + ... + 10556.

It is an arithmetic number, because the mean of its divisors is an integer number (13511640).

Almost surely, 2^54031643 is an apocalyptic number.

54031643 is a deficient number, since it is larger than the sum of its proper divisors (14917).

54031643 is an equidigital number, since it uses as much as digits as its factorization.

54031643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14916.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 54031643 is about 7350.6219464750. The cubic root of 54031643 is about 378.0501295927.

Adding to 54031643 its reverse (34613045), we get a palindrome (88644688).

The spelling of 54031643 in words is "fifty-four million, thirty-one thousand, six hundred forty-three".