472532509 has 2 divisors, whose sum is σ = 472532510. Its totient is φ = 472532508.

The previous prime is 472532479. The next prime is 472532519. The reversal of 472532509 is 905235274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425266884 + 47265625 = 20622^2 + 6875^2 .

It is a cyclic number.

It is not a de Polignac number, because 472532509 - 2⁷ = 472532381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472532519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236266254 + 236266255.

It is an arithmetic number, because the mean of its divisors is an integer number (236266255).

Almost surely, 2^472532509 is an apocalyptic number.

It is an amenable number.

472532509 is a deficient number, since it is larger than the sum of its proper divisors (1).

472532509 is an equidigital number, since it uses as much as digits as its factorization.

472532509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 472532509 is about 21737.8128844647. The cubic root of 472532509 is about 778.8919775972.

The spelling of 472532509 in words is "four hundred seventy-two million, five hundred thirty-two thousand, five hundred nine".