1250240225 has 24 divisors (see below), whose sum is σ = 1671559680. Its totient is φ = 922144320.

The previous prime is 1250240203. The next prime is 1250240237. The reversal of 1250240225 is 5220420521.

It is not a de Polignac number, because 1250240225 - 2¹⁰ = 1250239201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1250240225.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 351506 + ... + 355044.

It is an arithmetic number, because the mean of its divisors is an integer number (69648320).

Almost surely, 2^1250240225 is an apocalyptic number.

It is an amenable number.

1250240225 is a deficient number, since it is larger than the sum of its proper divisors (421319455).

1250240225 is a wasteful number, since it uses less digits than its factorization.

1250240225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649 (or 4644 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 1250240225 is about 35358.7361906503. The cubic root of 1250240225 is about 1077.2863471390.

Adding to 1250240225 its reverse (5220420521), we get a palindrome (6470660746).

The spelling of 1250240225 in words is "one billion, two hundred fifty million, two hundred forty thousand, two hundred twenty-five".