8065825557 has 4 divisors (see below), whose sum is σ = 10754434080. Its totient is φ = 5377217036.

The previous prime is 8065825507. The next prime is 8065825571. The reversal of 8065825557 is 7555285608.

8065825557 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8065825557 - 2⁸ = 8065825301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8065825507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344304257 + ... + 1344304262.

It is an arithmetic number, because the mean of its divisors is an integer number (2688608520).

Almost surely, 2^8065825557 is an apocalyptic number.

It is an amenable number.

8065825557 is a deficient number, since it is larger than the sum of its proper divisors (2688608523).

8065825557 is a wasteful number, since it uses less digits than its factorization.

8065825557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688608522.

The product of its (nonzero) digits is 3360000, while the sum is 51.

The square root of 8065825557 is about 89809.9413038445. The cubic root of 8065825557 is about 2005.4704863304.

The spelling of 8065825557 in words is "eight billion, sixty-five million, eight hundred twenty-five thousand, five hundred fifty-seven".