1225107225 has 36 divisors (see below), whose sum is σ = 2230300332. Its totient is φ = 642672000.

The previous prime is 1225107223. The next prime is 1225107253. The reversal of 1225107225 is 5227015221.

1225107225 is a `hidden beast` number, since 122 + 510 + 7 + 2 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 283046976 + 942060249 = 16824^2 + 30693^2 .

It is not a de Polignac number, because 1225107225 - 2¹ = 1225107223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225107223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30906 + ... + 58355.

It is an arithmetic number, because the mean of its divisors is an integer number (61952787).

Almost surely, 2^1225107225 is an apocalyptic number.

1225107225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225107225 is a deficient number, since it is larger than the sum of its proper divisors (1005193107).

1225107225 is a wasteful number, since it uses less digits than its factorization.

1225107225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89338 (or 89330 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 1225107225 is about 35001.5317521962. The cubic root of 1225107225 is about 1070.0186985407.

The spelling of 1225107225 in words is "one billion, two hundred twenty-five million, one hundred seven thousand, two hundred twenty-five".