8925405021 has 48 divisors (see below), whose sum is σ = 15086256640. Its totient is φ = 5035582080.

The previous prime is 8925405007. The next prime is 8925405029. The reversal of 8925405021 is 1205045298.

8925405021 is a `hidden beast` number, since 8 + 92 + 540 + 5 + 0 + 21 = 666.

It is not a de Polignac number, because 8925405021 - 2⁵ = 8925404989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8925405029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4155 + ... + 133671.

Almost surely, 2^8925405021 is an apocalyptic number.

It is an amenable number.

8925405021 is a deficient number, since it is larger than the sum of its proper divisors (6160851619).

8925405021 is a wasteful number, since it uses less digits than its factorization.

8925405021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129586 (or 129583 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 8925405021 is about 94474.3617125832. The cubic root of 8925405021 is about 2074.3210646444.

The spelling of 8925405021 in words is "eight billion, nine hundred twenty-five million, four hundred five thousand, twenty-one".