11030557 has 4 divisors (see below), whose sum is σ = 11042460. Its totient is φ = 11018656.

The previous prime is 11030543. The next prime is 11030561. The reversal of 11030557 is 75503011.

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 133956 + 10896601 = 366^2 + 3301^2 .

It is a cyclic number.

It is not a de Polignac number, because 11030557 - 2¹¹ = 11028509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11030587) 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, 4432 + ... + 6457.

It is an arithmetic number, because the mean of its divisors is an integer number (2760615).

Almost surely, 2^11030557 is an apocalyptic number.

It is an amenable number.

11030557 is a deficient number, since it is larger than the sum of its proper divisors (11903).

11030557 is a wasteful number, since it uses less digits than its factorization.

11030557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11902.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 11030557 is about 3321.2282366619. The cubic root of 11030557 is about 222.6037524793.

Adding to 11030557 its reverse (75503011), we get a palindrome (86533568).

The spelling of 11030557 in words is "eleven million, thirty thousand, five hundred fifty-seven".