2225155225 has 12 divisors (see below), whose sum is σ = 2766154924. Its totient is φ = 1775632320.

The previous prime is 2225155223. The next prime is 2225155241. The reversal of 2225155225 is 5225515222.

It can be written as a sum of positive squares in 6 ways, for example, as 51984 + 2225103241 = 228^2 + 47171^2 .

It is not a de Polignac number, because 2225155225 - 2¹ = 2225155223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2225155223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102174 + ... + 122023.

Almost surely, 2^2225155225 is an apocalyptic number.

2225155225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2225155225 is a deficient number, since it is larger than the sum of its proper divisors (540999699).

2225155225 is a wasteful number, since it uses less digits than its factorization.

2225155225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224604 (or 224599 counting only the distinct ones).

The product of its digits is 20000, while the sum is 31.

The square root of 2225155225 is about 47171.5510132961. The cubic root of 2225155225 is about 1305.5297438755.

The spelling of 2225155225 in words is "two billion, two hundred twenty-five million, one hundred fifty-five thousand, two hundred twenty-five".