11541125555 has 4 divisors (see below), whose sum is σ = 13849350672. Its totient is φ = 9232900440.

The previous prime is 11541125539. The next prime is 11541125569. The reversal of 11541125555 is 55552114511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55552114511 = 10369 ⋅5357519.

It is not a de Polignac number, because 11541125555 - 2⁴ = 11541125539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154112551 + ... + 1154112560.

It is an arithmetic number, because the mean of its divisors is an integer number (3462337668).

Almost surely, 2^11541125555 is an apocalyptic number.

11541125555 is a deficient number, since it is larger than the sum of its proper divisors (2308225117).

11541125555 is an equidigital number, since it uses as much as digits as its factorization.

11541125555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308225116.

The product of its digits is 25000, while the sum is 35.

The spelling of 11541125555 in words is "eleven billion, five hundred forty-one million, one hundred twenty-five thousand, five hundred fifty-five".