54407543 has 2 divisors, whose sum is σ = 54407544. Its totient is φ = 54407542.

The previous prime is 54407473. The next prime is 54407609. The reversal of 54407543 is 34570445.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54407543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54007543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27203771 + 27203772.

It is an arithmetic number, because the mean of its divisors is an integer number (27203772).

Almost surely, 2^54407543 is an apocalyptic number.

54407543 is a deficient number, since it is larger than the sum of its proper divisors (1).

54407543 is an equidigital number, since it uses as much as digits as its factorization.

54407543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 54407543 is about 7376.1468938735. The cubic root of 54407543 is about 378.9248069187.

Adding to 54407543 its reverse (34570445), we get a palindrome (88977988).

The spelling of 54407543 in words is "fifty-four million, four hundred seven thousand, five hundred forty-three".