11155054225 has 24 divisors (see below), whose sum is σ = 15812265728. Its totient is φ = 7647264000.

The previous prime is 11155054219. The next prime is 11155054243. The reversal of 11155054225 is 52245055111.

It is not a de Polignac number, because 11155054225 - 2³ = 11155054217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1387417 + ... + 1395433.

Almost surely, 2^11155054225 is an apocalyptic number.

It is an amenable number.

11155054225 is a deficient number, since it is larger than the sum of its proper divisors (4657211503).

11155054225 is an equidigital number, since it uses as much as digits as its factorization.

11155054225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15985 (or 15980 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 11155054225 in words is "eleven billion, one hundred fifty-five million, fifty-four thousand, two hundred twenty-five".