32505066 has 48 divisors (see below), whose sum is σ = 77339808. Its totient is φ = 9784800.

The previous prime is 32505023. The next prime is 32505073. The reversal of 32505066 is 66050523.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 35385 + ... + 36291.

It is an arithmetic number, because the mean of its divisors is an integer number (1611246).

Almost surely, 2^32505066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32505066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38669904).

32505066 is an abundant number, since it is smaller than the sum of its proper divisors (44834742).

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

32505066 is a wasteful number, since it uses less digits than its factorization.

32505066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1104 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 32505066 is about 5701.3214257749. The cubic root of 32505066 is about 319.1417955004.

Adding to 32505066 its reverse (66050523), we get a palindrome (98555589).

The spelling of 32505066 in words is "thirty-two million, five hundred five thousand, sixty-six".