47003547509 has 2 divisors, whose sum is σ = 47003547510. Its totient is φ = 47003547508.

The previous prime is 47003547497. The next prime is 47003547583. The reversal of 47003547509 is 90574530074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46320509284 + 683038225 = 215222^2 + 26135^2 .

It is a cyclic number.

It is not a de Polignac number, because 47003547509 - 2¹² = 47003543413 is a prime.

It is a super-3 number, since 3×47003547509³ (a number of 33 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47003547509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47003547589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23501773754 + 23501773755.

It is an arithmetic number, because the mean of its divisors is an integer number (23501773755).

Almost surely, 2^47003547509 is an apocalyptic number.

It is an amenable number.

47003547509 is a deficient number, since it is larger than the sum of its proper divisors (1).

47003547509 is an equidigital number, since it uses as much as digits as its factorization.

47003547509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 47003547509 in words is "forty-seven billion, three million, five hundred forty-seven thousand, five hundred nine".