8252016005421 has 64 divisors (see below), whose sum is σ = 13154387558400. Its totient is φ = 5101058289600.

The previous prime is 8252016005393. The next prime is 8252016005447. The reversal of 8252016005421 is 1245006102528.

8252016005421 is a `hidden beast` number, since 8 + 2 + 5 + 2 + 0 + 1 + 600 + 5 + 42 + 1 = 666.

It is not a de Polignac number, because 8252016005421 - 2⁶ = 8252016005357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8252016005521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1882180 + ... + 4477346.

It is an arithmetic number, because the mean of its divisors is an integer number (205537305600).

Almost surely, 2^{8252016005421} is an apocalyptic number.

It is an amenable number.

8252016005421 is a deficient number, since it is larger than the sum of its proper divisors (4902371552979).

8252016005421 is a wasteful number, since it uses less digits than its factorization.

8252016005421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595367 (or 2595361 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 8252016005421 in words is "eight trillion, two hundred fifty-two billion, sixteen million, five thousand, four hundred twenty-one".