11420055 has 32 divisors (see below), whose sum is σ = 21009600. Its totient is φ = 5878656.

The previous prime is 11420051. The next prime is 11420063. The reversal of 11420055 is 55002411.

11420055 = T₄₉₀ + T₄₉₁ + ... + T₅₇₀.

11420055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11420055 - 2² = 11420051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2457 + ... + 5373.

It is an arithmetic number, because the mean of its divisors is an integer number (656550).

Almost surely, 2^11420055 is an apocalyptic number.

11420055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11420055 is a deficient number, since it is larger than the sum of its proper divisors (9589545).

11420055 is a wasteful number, since it uses less digits than its factorization.

11420055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960 (or 2954 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 11420055 is about 3379.3571873953. The cubic root of 11420055 is about 225.1936111288.

Adding to 11420055 its reverse (55002411), we get a palindrome (66422466).

The spelling of 11420055 in words is "eleven million, four hundred twenty thousand, fifty-five".