11552457317 has 4 divisors (see below), whose sum is σ = 11552728236. Its totient is φ = 11552186400.

The previous prime is 11552457289. The next prime is 11552457331. The reversal of 11552457317 is 71375425511.

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 5253495361 + 6298961956 = 72481^2 + 79366^2 .

It is a cyclic number.

It is not a de Polignac number, because 11552457317 - 2⁸ = 11552457061 is a prime.

It is a super-2 number, since 2×11552457317² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11552457347) 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 in 3 ways as a sum of consecutive naturals, for example, 55934 + ... + 161967.

It is an arithmetic number, because the mean of its divisors is an integer number (2888182059).

Almost surely, 2^11552457317 is an apocalyptic number.

It is an amenable number.

11552457317 is a deficient number, since it is larger than the sum of its proper divisors (270919).

11552457317 is an equidigital number, since it uses as much as digits as its factorization.

11552457317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270918.

The product of its digits is 147000, while the sum is 41.

The spelling of 11552457317 in words is "eleven billion, five hundred fifty-two million, four hundred fifty-seven thousand, three hundred seventeen".