11055531535 has 4 divisors (see below), whose sum is σ = 13266637848. Its totient is φ = 8844425224.

The previous prime is 11055531533. The next prime is 11055531559. The reversal of 11055531535 is 53513555011.

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 11055531535 - 2¹ = 11055531533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11055531535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11055531533) 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, 1105553149 + ... + 1105553158.

It is an arithmetic number, because the mean of its divisors is an integer number (3316659462).

Almost surely, 2^11055531535 is an apocalyptic number.

11055531535 is a deficient number, since it is larger than the sum of its proper divisors (2211106313).

11055531535 is an equidigital number, since it uses as much as digits as its factorization.

11055531535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211106312.

The product of its (nonzero) digits is 28125, while the sum is 34.

The spelling of 11055531535 in words is "eleven billion, fifty-five million, five hundred thirty-one thousand, five hundred thirty-five".