7243993225 has 12 divisors (see below), whose sum is σ = 10265773504. Its totient is φ = 4967309520.

The previous prime is 7243993223. The next prime is 7243993247. The reversal of 7243993225 is 5223993427.

It is not a de Polignac number, because 7243993225 - 2¹ = 7243993223 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7243993223) 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, 20696949 + ... + 20697298.

Almost surely, 2^7243993225 is an apocalyptic number.

It is an amenable number.

7243993225 is a deficient number, since it is larger than the sum of its proper divisors (3021780279).

7243993225 is a wasteful number, since it uses less digits than its factorization.

7243993225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41394264 (or 41394259 counting only the distinct ones).

The product of its digits is 816480, while the sum is 46.

The square root of 7243993225 is about 85111.6515231610. The cubic root of 7243993225 is about 1934.9036557292.

The spelling of 7243993225 in words is "seven billion, two hundred forty-three million, nine hundred ninety-three thousand, two hundred twenty-five".