10558491509 has 2 divisors, whose sum is σ = 10558491510. Its totient is φ = 10558491508.

The previous prime is 10558491499. The next prime is 10558491547. The reversal of 10558491509 is 90519485501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10551809284 + 6682225 = 102722^2 + 2585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10558491509 is a prime.

It is a super-2 number, since 2×10558491509² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10558491589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5279245754 + 5279245755.

It is an arithmetic number, because the mean of its divisors is an integer number (5279245755).

Almost surely, 2^10558491509 is an apocalyptic number.

It is an amenable number.

10558491509 is a deficient number, since it is larger than the sum of its proper divisors (1).

10558491509 is an equidigital number, since it uses as much as digits as its factorization.

10558491509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 47.

The spelling of 10558491509 in words is "ten billion, five hundred fifty-eight million, four hundred ninety-one thousand, five hundred nine".