8445821925 has 12 divisors (see below), whose sum is σ = 13963759040. Its totient is φ = 4504438320.

The previous prime is 8445821903. The next prime is 8445821941. The reversal of 8445821925 is 5291285448.

It is not a de Polignac number, because 8445821925 - 2⁶ = 8445821861 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56305405 + ... + 56305554.

Almost surely, 2^8445821925 is an apocalyptic number.

It is an amenable number.

8445821925 is a deficient number, since it is larger than the sum of its proper divisors (5517937115).

8445821925 is a wasteful number, since it uses less digits than its factorization.

8445821925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112610972 (or 112610967 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 8445821925 is about 91901.1530123534. The cubic root of 8445821925 is about 2036.4823015515.

The spelling of 8445821925 in words is "eight billion, four hundred forty-five million, eight hundred twenty-one thousand, nine hundred twenty-five".