32520450040 has 64 divisors (see below), whose sum is σ = 79255260000. Its totient is φ = 11938109952.

The previous prime is 32520450029. The next prime is 32520450049. The reversal of 32520450040 is 4005402523.

It is a junction number, because it is equal to n+sod(n) for n = 32520449987 and 32520450014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32520450049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90790 + ... + 270709.

Almost surely, 2^32520450040 is an apocalyptic number.

It is an amenable number.

32520450040 is an abundant number, since it is smaller than the sum of its proper divisors (46734809960).

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

32520450040 is a wasteful number, since it uses less digits than its factorization.

32520450040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361696 (or 361692 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 32520450040 its reverse (4005402523), we get a palindrome (36525852563).

The spelling of 32520450040 in words is "thirty-two billion, five hundred twenty million, four hundred fifty thousand, forty".