32205128725 has 72 divisors (see below), whose sum is σ = 53345023200. Its totient is φ = 19019145600.

The previous prime is 32205128653. The next prime is 32205128771. The reversal of 32205128725 is 52782150223.

It is not a de Polignac number, because 32205128725 - 2⁹ = 32205128213 is a prime.

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 193131 + ... + 318919.

It is an arithmetic number, because the mean of its divisors is an integer number (740903100).

Almost surely, 2^32205128725 is an apocalyptic number.

32205128725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

32205128725 is a deficient number, since it is larger than the sum of its proper divisors (21139894475).

32205128725 is a wasteful number, since it uses less digits than its factorization.

32205128725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125843 (or 125831 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

Adding to 32205128725 its reverse (52782150223), we get a palindrome (84987278948).

The spelling of 32205128725 in words is "thirty-two billion, two hundred five million, one hundred twenty-eight thousand, seven hundred twenty-five".