513525532543 has 4 divisors (see below), whose sum is σ = 513584438560. Its totient is φ = 513466626528.

The previous prime is 513525532519. The next prime is 513525532603. The reversal of 513525532543 is 345235525315.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513525532543 is a prime.

It is a super-3 number, since 3×513525532543³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 513525532543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513525532643) 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, 29439930 + ... + 29457367.

It is an arithmetic number, because the mean of its divisors is an integer number (128396109640).

Almost surely, 2^513525532543 is an apocalyptic number.

513525532543 is a deficient number, since it is larger than the sum of its proper divisors (58906017).

513525532543 is an equidigital number, since it uses as much as digits as its factorization.

513525532543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58906016.

The product of its digits is 1350000, while the sum is 43.

The spelling of 513525532543 in words is "five hundred thirteen billion, five hundred twenty-five million, five hundred thirty-two thousand, five hundred forty-three".