2543532531 has 8 divisors (see below), whose sum is σ = 3392273664. Its totient is φ = 1695239880.

The previous prime is 2543532529. The next prime is 2543532569. The reversal of 2543532531 is 1352353452.

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

It is not a de Polignac number, because 2543532531 - 2¹ = 2543532529 is a prime.

It is a super-2 number, since 2×2543532531² = 12939115472510531922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2543532492 and 2543532501.

It is not an unprimeable number, because it can be changed into a prime (2543532031) 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, 98655 + ... + 121736.

It is an arithmetic number, because the mean of its divisors is an integer number (424034208).

Almost surely, 2^2543532531 is an apocalyptic number.

2543532531 is a deficient number, since it is larger than the sum of its proper divisors (848741133).

2543532531 is a wasteful number, since it uses less digits than its factorization.

2543532531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224241.

The product of its digits is 54000, while the sum is 33.

The square root of 2543532531 is about 50433.4465508753. The cubic root of 2543532531 is about 1365.0412186831.

Adding to 2543532531 its reverse (1352353452), we get a palindrome (3895885983).

The spelling of 2543532531 in words is "two billion, five hundred forty-three million, five hundred thirty-two thousand, five hundred thirty-one".