53405133143 has 4 divisors (see below), whose sum is σ = 54707697408. Its totient is φ = 52102568880.

The previous prime is 53405133091. The next prime is 53405133169. The reversal of 53405133143 is 34133150435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34133150435 = 5 ⋅6826630087.

It is a cyclic number.

It is not a de Polignac number, because 53405133143 - 2¹⁰ = 53405132119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53405133343) 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, 651282071 + ... + 651282152.

It is an arithmetic number, because the mean of its divisors is an integer number (13676924352).

Almost surely, 2^53405133143 is an apocalyptic number.

53405133143 is a deficient number, since it is larger than the sum of its proper divisors (1302564265).

53405133143 is a wasteful number, since it uses less digits than its factorization.

53405133143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302564264.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 53405133143 its reverse (34133150435), we get a palindrome (87538283578).

The spelling of 53405133143 in words is "fifty-three billion, four hundred five million, one hundred thirty-three thousand, one hundred forty-three".