4517531540 has 24 divisors (see below), whose sum is σ = 9528617952. Its totient is φ = 1799050400.

The previous prime is 4517531537. The next prime is 4517531549. The reversal of 4517531540 is 451357154.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4517531540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4517531549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492986 + ... + 502065.

It is an arithmetic number, because the mean of its divisors is an integer number (397025748).

Almost surely, 2^4517531540 is an apocalyptic number.

It is an amenable number.

4517531540 is an abundant number, since it is smaller than the sum of its proper divisors (5011086412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4517531540 is a wasteful number, since it uses less digits than its factorization.

4517531540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995287 (or 995285 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 4517531540 is about 67212.5846847151. The cubic root of 4517531540 is about 1653.1048413678.

Adding to 4517531540 its reverse (451357154), we get a palindrome (4968888694).

The spelling of 4517531540 in words is "four billion, five hundred seventeen million, five hundred thirty-one thousand, five hundred forty".