5401544543 has 2 divisors, whose sum is σ = 5401544544. Its totient is φ = 5401544542.

The previous prime is 5401544537. The next prime is 5401544557. The reversal of 5401544543 is 3454451045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5401544543 - 2¹⁶ = 5401479007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5401544593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2700772271 + 2700772272.

It is an arithmetic number, because the mean of its divisors is an integer number (2700772272).

Almost surely, 2^5401544543 is an apocalyptic number.

5401544543 is a deficient number, since it is larger than the sum of its proper divisors (1).

5401544543 is an equidigital number, since it uses as much as digits as its factorization.

5401544543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96000, while the sum is 35.

The square root of 5401544543 is about 73495.2008161077. The cubic root of 5401544543 is about 1754.5778962835.

Adding to 5401544543 its reverse (3454451045), we get a palindrome (8855995588).

The spelling of 5401544543 in words is "five billion, four hundred one million, five hundred forty-four thousand, five hundred forty-three".