11557455 has 32 divisors (see below), whose sum is σ = 22761984. Its totient is φ = 4876416.

The previous prime is 11557439. The next prime is 11557459. The reversal of 11557455 is 55475511.

It is a happy number.

11557455 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11557455 - 2⁴ = 11557439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11557459) 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, 2869 + ... + 5598.

It is an arithmetic number, because the mean of its divisors is an integer number (711312).

Almost surely, 2^11557455 is an apocalyptic number.

11557455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11557455 is a deficient number, since it is larger than the sum of its proper divisors (11204529).

11557455 is a wasteful number, since it uses less digits than its factorization.

11557455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8495.

The product of its digits is 17500, while the sum is 33.

The square root of 11557455 is about 3399.6257146927. The cubic root of 11557455 is about 226.0931495307.

The spelling of 11557455 in words is "eleven million, five hundred fifty-seven thousand, four hundred fifty-five".