8041025921 has 2 divisors, whose sum is σ = 8041025922. Its totient is φ = 8041025920.

The previous prime is 8041025899. The next prime is 8041026017. The reversal of 8041025921 is 1295201408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4084615921 + 3956410000 = 63911^2 + 62900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8041025921 is a prime.

It is not a weakly prime, because it can be changed into another prime (8041021921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4020512960 + 4020512961.

It is an arithmetic number, because the mean of its divisors is an integer number (4020512961).

Almost surely, 2^8041025921 is an apocalyptic number.

It is an amenable number.

8041025921 is a deficient number, since it is larger than the sum of its proper divisors (1).

8041025921 is an equidigital number, since it uses as much as digits as its factorization.

8041025921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 8041025921 is about 89671.7676919553. The cubic root of 8041025921 is about 2003.4129991553.

The spelling of 8041025921 in words is "eight billion, forty-one million, twenty-five thousand, nine hundred twenty-one".