8425250921 has 8 divisors (see below), whose sum is σ = 8870344320. Its totient is φ = 7980323472.

The previous prime is 8425250903. The next prime is 8425250963. The reversal of 8425250921 is 1290525248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8425250921 - 2⁶ = 8425250857 is a prime.

It is a super-2 number, since 2×8425250921² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8425250971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70511 + ... + 147723.

It is an arithmetic number, because the mean of its divisors is an integer number (1108793040).

Almost surely, 2^8425250921 is an apocalyptic number.

It is an amenable number.

8425250921 is a deficient number, since it is larger than the sum of its proper divisors (445093399).

8425250921 is a wasteful number, since it uses less digits than its factorization.

8425250921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82975.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 8425250921 is about 91789.1655970355. The cubic root of 8425250921 is about 2034.8275763415.

The spelling of 8425250921 in words is "eight billion, four hundred twenty-five million, two hundred fifty thousand, nine hundred twenty-one".