1058252809 has 4 divisors (see below), whose sum is σ = 1070143380. Its totient is φ = 1046362240.

The previous prime is 1058252803. The next prime is 1058252813. The reversal of 1058252809 is 9082528501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 155550784 + 902702025 = 12472^2 + 30045^2 .

It is a cyclic number.

It is not a de Polignac number, because 1058252809 - 2⁵ = 1058252777 is a prime.

It is a super-3 number, since 3×1058252809³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1058252803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5945152 + ... + 5945329.

It is an arithmetic number, because the mean of its divisors is an integer number (267535845).

Almost surely, 2^1058252809 is an apocalyptic number.

It is an amenable number.

1058252809 is a deficient number, since it is larger than the sum of its proper divisors (11890571).

1058252809 is an equidigital number, since it uses as much as digits as its factorization.

1058252809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11890570.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 1058252809 is about 32530.7978537262. The cubic root of 1058252809 is about 1019.0523073176.

The spelling of 1058252809 in words is "one billion, fifty-eight million, two hundred fifty-two thousand, eight hundred nine".