32505047445 has 32 divisors (see below), whose sum is σ = 57940041600. Its totient is φ = 15450672384.

The previous prime is 32505047441. The next prime is 32505047507. The reversal of 32505047445 is 54474050523.

It is not a de Polignac number, because 32505047445 - 2² = 32505047441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32505047441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2868355 + ... + 2879664.

It is an arithmetic number, because the mean of its divisors is an integer number (1810626300).

Almost surely, 2^32505047445 is an apocalyptic number.

It is an amenable number.

32505047445 is a deficient number, since it is larger than the sum of its proper divisors (25434994155).

32505047445 is a wasteful number, since it uses less digits than its factorization.

32505047445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748069.

The product of its (nonzero) digits is 336000, while the sum is 39.

Adding to 32505047445 its reverse (54474050523), we get a palindrome (86979097968).

The spelling of 32505047445 in words is "thirty-two billion, five hundred five million, forty-seven thousand, four hundred forty-five".