11057553 has 20 divisors (see below), whose sum is σ = 17790388. Its totient is φ = 6804000.

The previous prime is 11057539. The next prime is 11057567. The reversal of 11057553 is 35575011.

11057553 is a `hidden beast` number, since 1 + 105 + 7 + 553 = 666.

It is an interprime number because it is at equal distance from previous prime (11057539) and next prime (11057567).

It can be written as a sum of positive squares in 2 ways, for example, as 2396304 + 8661249 = 1548^2 + 2943^2 .

It is not a de Polignac number, because 11057553 - 2⁶ = 11057489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11057513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4198 + ... + 6303.

Almost surely, 2^11057553 is an apocalyptic number.

11057553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11057553 is a deficient number, since it is larger than the sum of its proper divisors (6732835).

11057553 is a wasteful number, since it uses less digits than its factorization.

11057553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10526 (or 10517 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 27.

The square root of 11057553 is about 3325.2899121731. The cubic root of 11057553 is about 222.7852034284.

The spelling of 11057553 in words is "eleven million, fifty-seven thousand, five hundred fifty-three".