11054557 has 4 divisors (see below), whose sum is σ = 11062080. Its totient is φ = 11047036.

The previous prime is 11054473. The next prime is 11054567. The reversal of 11054557 is 75545011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 75545011 = 4817 ⋅15683.

It is a cyclic number.

It is not a de Polignac number, because 11054557 - 2¹⁵ = 11021789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11054567) 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, 757 + ... + 4762.

It is an arithmetic number, because the mean of its divisors is an integer number (2765520).

Almost surely, 2^11054557 is an apocalyptic number.

It is an amenable number.

11054557 is a deficient number, since it is larger than the sum of its proper divisors (7523).

11054557 is an equidigital number, since it uses as much as digits as its factorization.

11054557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 11054557 is about 3324.8393946174. The cubic root of 11054557 is about 222.7650806894.

Adding to 11054557 its reverse (75545011), we get a palindrome (86599568).

It can be divided in two parts, 11054 and 557, that added together give a palindrome (11611).

The spelling of 11054557 in words is "eleven million, fifty-four thousand, five hundred fifty-seven".