32501009 has 2 divisors, whose sum is σ = 32501010. Its totient is φ = 32501008.

The previous prime is 32500973. The next prime is 32501011. The reversal of 32501009 is 90010523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23668225 + 8832784 = 4865^2 + 2972^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32501009 is a prime.

Together with 32501011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32501309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16250504 + 16250505.

It is an arithmetic number, because the mean of its divisors is an integer number (16250505).

Almost surely, 2^32501009 is an apocalyptic number.

It is an amenable number.

32501009 is a deficient number, since it is larger than the sum of its proper divisors (1).

32501009 is an equidigital number, since it uses as much as digits as its factorization.

32501009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 32501009 is about 5700.9656199630. The cubic root of 32501009 is about 319.1285174457.

The spelling of 32501009 in words is "thirty-two million, five hundred one thousand, nine".