11056531 has 4 divisors (see below), whose sum is σ = 11141064. Its totient is φ = 10972000.

The previous prime is 11056523. The next prime is 11056561. The reversal of 11056531 is 13565011.

11056531 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11056531 - 2³ = 11056523 is a prime.

It is a super-2 number, since 2×11056531² = 244493755507922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11056501) 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, 42070 + ... + 42331.

It is an arithmetic number, because the mean of its divisors is an integer number (2785266).

Almost surely, 2^11056531 is an apocalyptic number.

11056531 is a deficient number, since it is larger than the sum of its proper divisors (84533).

11056531 is an equidigital number, since it uses as much as digits as its factorization.

11056531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84532.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 11056531 is about 3325.1362378104. The cubic root of 11056531 is about 222.7783395381.

The spelling of 11056531 in words is "eleven million, fifty-six thousand, five hundred thirty-one".