7944756225 has 48 divisors (see below), whose sum is σ = 15223311360. Its totient is φ = 3580718400.

The previous prime is 7944756223. The next prime is 7944756257. The reversal of 7944756225 is 5226574497.

It is not a de Polignac number, because 7944756225 - 2¹ = 7944756223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7944756223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69295 + ... + 143844.

It is an arithmetic number, because the mean of its divisors is an integer number (317152320).

Almost surely, 2^7944756225 is an apocalyptic number.

7944756225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7944756225 is a deficient number, since it is larger than the sum of its proper divisors (7278555135).

7944756225 is a wasteful number, since it uses less digits than its factorization.

7944756225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213230 (or 213225 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 51.

The square root of 7944756225 is about 89133.3620200652. The cubic root of 7944756225 is about 1995.3857144549.

The spelling of 7944756225 in words is "seven billion, nine hundred forty-four million, seven hundred fifty-six thousand, two hundred twenty-five".