32720326225 has 6 divisors (see below), whose sum is σ = 40573204550. Its totient is φ = 26176260960.

The previous prime is 32720326201. The next prime is 32720326229. The reversal of 32720326225 is 52262302723.

It can be written as a sum of positive squares in 3 ways, for example, as 7271143441 + 25449182784 = 85271^2 + 159528^2 .

It is not a de Polignac number, because 32720326225 - 2⁵ = 32720326193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32720326229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 654406500 + ... + 654406549.

Almost surely, 2^32720326225 is an apocalyptic number.

It is an amenable number.

32720326225 is a deficient number, since it is larger than the sum of its proper divisors (7852878325).

32720326225 is a wasteful number, since it uses less digits than its factorization.

32720326225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308813059 (or 1308813054 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 34.

Adding to 32720326225 its reverse (52262302723), we get a palindrome (84982628948).

The spelling of 32720326225 in words is "thirty-two billion, seven hundred twenty million, three hundred twenty-six thousand, two hundred twenty-five".