11059581 has 8 divisors (see below), whose sum is σ = 15880480. Its totient is φ = 6805872.

The previous prime is 11059567. The next prime is 11059583. The reversal of 11059581 is 18595011.

11059581 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11059581 - 2⁵ = 11059549 is a prime.

It is a super-2 number, since 2×11059581² = 244628663791122, which 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 (11059583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141751 + ... + 141828.

It is an arithmetic number, because the mean of its divisors is an integer number (1985060).

Almost surely, 2^11059581 is an apocalyptic number.

It is an amenable number.

11059581 is a deficient number, since it is larger than the sum of its proper divisors (4820899).

11059581 is a wasteful number, since it uses less digits than its factorization.

11059581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283595.

The product of its (nonzero) digits is 1800, while the sum is 30.

The square root of 11059581 is about 3325.5948340109. The cubic root of 11059581 is about 222.7988224987.

The spelling of 11059581 in words is "eleven million, fifty-nine thousand, five hundred eighty-one".