32472509 has 2 divisors, whose sum is σ = 32472510. Its totient is φ = 32472508.

The previous prime is 32472497. The next prime is 32472521. The reversal of 32472509 is 90527423.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (32472497) and next prime (32472521).

It can be written as a sum of positive squares in only one way, i.e., 18619225 + 13853284 = 4315^2 + 3722^2 .

It is a cyclic number.

It is not a de Polignac number, because 32472509 - 2⁴ = 32472493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32472599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16236254 + 16236255.

It is an arithmetic number, because the mean of its divisors is an integer number (16236255).

Almost surely, 2^32472509 is an apocalyptic number.

It is an amenable number.

32472509 is a deficient number, since it is larger than the sum of its proper divisors (1).

32472509 is an equidigital number, since it uses as much as digits as its factorization.

32472509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 32472509 is about 5698.4654952013. The cubic root of 32472509 is about 319.0352093420.

The spelling of 32472509 in words is "thirty-two million, four hundred seventy-two thousand, five hundred nine".