53400064043 has 4 divisors (see below), whose sum is σ = 53521704720. Its totient is φ = 53278423368.

The previous prime is 53400064021. The next prime is 53400064049. The reversal of 53400064043 is 34046000435.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53400064043 - 2¹⁸ = 53399801899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53400063997 and 53400064015.

It is not an unprimeable number, because it can be changed into a prime (53400064049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60819680 + ... + 60820557.

It is an arithmetic number, because the mean of its divisors is an integer number (13380426180).

Almost surely, 2^53400064043 is an apocalyptic number.

53400064043 is a deficient number, since it is larger than the sum of its proper divisors (121640677).

53400064043 is a wasteful number, since it uses less digits than its factorization.

53400064043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121640676.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 53400064043 its reverse (34046000435), we get a palindrome (87446064478).

The spelling of 53400064043 in words is "fifty-three billion, four hundred million, sixty-four thousand, forty-three".