11054551 has 4 divisors (see below), whose sum is σ = 11164104. Its totient is φ = 10945000.

The previous prime is 11054473. The next prime is 11054567. The reversal of 11054551 is 15545011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15545011 = 101 ⋅153911.

It is a cyclic number.

It is not a de Polignac number, because 11054551 - 2¹⁵ = 11021783 is a prime.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11054591) 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, 54625 + ... + 54826.

It is an arithmetic number, because the mean of its divisors is an integer number (2791026).

Almost surely, 2^11054551 is an apocalyptic number.

11054551 is a deficient number, since it is larger than the sum of its proper divisors (109553).

11054551 is a wasteful number, since it uses less digits than its factorization.

11054551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109552.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 11054551 is about 3324.8384923181. The cubic root of 11054551 is about 222.7650403865.

Adding to 11054551 its reverse (15545011), we get a palindrome (26599562).

The spelling of 11054551 in words is "eleven million, fifty-four thousand, five hundred fifty-one".