53534520143 has 8 divisors (see below), whose sum is σ = 58442322288. Its totient is φ = 48739541184.

The previous prime is 53534520139. The next prime is 53534520161. The reversal of 53534520143 is 34102543535.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53534520143 - 2² = 53534520139 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 (53534520103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28204805 + ... + 28206702.

It is an arithmetic number, because the mean of its divisors is an integer number (7305290286).

Almost surely, 2^53534520143 is an apocalyptic number.

53534520143 is a deficient number, since it is larger than the sum of its proper divisors (4907802145).

53534520143 is a wasteful number, since it uses less digits than its factorization.

53534520143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56411593.

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 53534520143 in words is "fifty-three billion, five hundred thirty-four million, five hundred twenty thousand, one hundred forty-three".