1225334025 has 18 divisors (see below), whose sum is σ = 2194709790. Its totient is φ = 653511360.

The previous prime is 1225334017. The next prime is 1225334027. The reversal of 1225334025 is 5204335221.

It is a happy number.

1225334025 is a `hidden beast` number, since 1 + 2 + 253 + 3 + 402 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 4460544 + 1220873481 = 2112^2 + 34941^2 .

It is not a de Polignac number, because 1225334025 - 2³ = 1225334017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225334025.

It is not an unprimeable number, because it can be changed into a prime (1225334027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2722740 + ... + 2723189.

Almost surely, 2^1225334025 is an apocalyptic number.

1225334025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225334025 is a deficient number, since it is larger than the sum of its proper divisors (969375765).

1225334025 is a wasteful number, since it uses less digits than its factorization.

1225334025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5445945 (or 5445937 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1225334025 is about 35004.7714604738. The cubic root of 1225334025 is about 1070.0847241265.

Adding to 1225334025 its reverse (5204335221), we get a palindrome (6429669246).

The spelling of 1225334025 in words is "one billion, two hundred twenty-five million, three hundred thirty-four thousand, twenty-five".