11255425205 has 4 divisors (see below), whose sum is σ = 13506510252. Its totient is φ = 9004340160.

The previous prime is 11255425201. The next prime is 11255425213. The reversal of 11255425205 is 50252455211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8864410801 + 2391014404 = 94151^2 + 48898^2 .

It is not a de Polignac number, because 11255425205 - 2² = 11255425201 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 (11255425201) 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, 1125542516 + ... + 1125542525.

It is an arithmetic number, because the mean of its divisors is an integer number (3376627563).

Almost surely, 2^11255425205 is an apocalyptic number.

It is an amenable number.

11255425205 is a deficient number, since it is larger than the sum of its proper divisors (2251085047).

11255425205 is an equidigital number, since it uses as much as digits as its factorization.

11255425205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251085046.

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 11255425205 in words is "eleven billion, two hundred fifty-five million, four hundred twenty-five thousand, two hundred five".