11420555 has 8 divisors (see below), whose sum is σ = 14146944. Its totient is φ = 8841600.

The previous prime is 11420543. The next prime is 11420567. The reversal of 11420555 is 55502411.

It is a happy number.

11420555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11420543) and next prime (11420567).

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

It is not a de Polignac number, because 11420555 - 2⁶ = 11420491 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 11420555.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36686 + ... + 36995.

It is an arithmetic number, because the mean of its divisors is an integer number (1768368).

Almost surely, 2^11420555 is an apocalyptic number.

11420555 is a deficient number, since it is larger than the sum of its proper divisors (2726389).

11420555 is an equidigital number, since it uses as much as digits as its factorization.

11420555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73717.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 11420555 is about 3379.4311651519. The cubic root of 11420555 is about 225.1968976034.

Adding to 11420555 its reverse (55502411), we get a palindrome (66922966).

The spelling of 11420555 in words is "eleven million, four hundred twenty thousand, five hundred fifty-five".