32505345 has 12 divisors (see below), whose sum is σ = 56342676. Its totient is φ = 17336160.

The previous prime is 32505337. The next prime is 32505349. The reversal of 32505345 is 54350523.

It can be written as a sum of positive squares in 2 ways, for example, as 8856576 + 23648769 = 2976^2 + 4863^2 .

It is not a de Polignac number, because 32505345 - 2³ = 32505337 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32505349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361126 + ... + 361215.

It is an arithmetic number, because the mean of its divisors is an integer number (4695223).

Almost surely, 2^32505345 is an apocalyptic number.

It is an amenable number.

32505345 is a deficient number, since it is larger than the sum of its proper divisors (23837331).

32505345 is a wasteful number, since it uses less digits than its factorization.

32505345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722352 (or 722349 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 32505345 is about 5701.3458937342. The cubic root of 32505345 is about 319.1427085920.

Adding to 32505345 its reverse (54350523), we get a palindrome (86855868).

The spelling of 32505345 in words is "thirty-two million, five hundred five thousand, three hundred forty-five".