11573257 has 2 divisors, whose sum is σ = 11573258. Its totient is φ = 11573256.

The previous prime is 11573251. The next prime is 11573269. The reversal of 11573257 is 75237511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11451456 + 121801 = 3384^2 + 349^2 .

It is a cyclic number.

It is not a de Polignac number, because 11573257 - 2¹⁵ = 11540489 is a prime.

It is not a weakly prime, because it can be changed into another prime (11573251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5786628 + 5786629.

It is an arithmetic number, because the mean of its divisors is an integer number (5786629).

Almost surely, 2^11573257 is an apocalyptic number.

It is an amenable number.

11573257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11573257 is an equidigital number, since it uses as much as digits as its factorization.

11573257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7350, while the sum is 31.

The square root of 11573257 is about 3401.9490002056. The cubic root of 11573257 is about 226.1961450117.

The spelling of 11573257 in words is "eleven million, five hundred seventy-three thousand, two hundred fifty-seven".