53543243531 has 8 divisors (see below), whose sum is σ = 56372888400. Its totient is φ = 50714756640.

The previous prime is 53543243491. The next prime is 53543243543. The reversal of 53543243531 is 13534234535.

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 53543243531 - 2²⁶ = 53476134667 is a prime.

It is a super-2 number, since 2×53543243531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53543243581) 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, 193760 + ... + 380301.

It is an arithmetic number, because the mean of its divisors is an integer number (7046611050).

Almost surely, 2^53543243531 is an apocalyptic number.

53543243531 is a deficient number, since it is larger than the sum of its proper divisors (2829644869).

53543243531 is a wasteful number, since it uses less digits than its factorization.

53543243531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578989.

The product of its digits is 324000, while the sum is 38.

The spelling of 53543243531 in words is "fifty-three billion, five hundred forty-three million, two hundred forty-three thousand, five hundred thirty-one".