8057505729 has 64 divisors (see below), whose sum is σ = 13387759616. Its totient is φ = 4197360384.

The previous prime is 8057505719. The next prime is 8057505749. The reversal of 8057505729 is 9275057508.

It is not a de Polignac number, because 8057505729 - 2⁷ = 8057505601 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8057505719) 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, 10643619 + ... + 10644375.

It is an arithmetic number, because the mean of its divisors is an integer number (209183744).

Almost surely, 2^8057505729 is an apocalyptic number.

It is an amenable number.

8057505729 is a deficient number, since it is larger than the sum of its proper divisors (5330253887).

8057505729 is a wasteful number, since it uses less digits than its factorization.

8057505729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its (nonzero) digits is 882000, while the sum is 48.

The square root of 8057505729 is about 89763.6102716463. The cubic root of 8057505729 is about 2004.7807073964.

The spelling of 8057505729 in words is "eight billion, fifty-seven million, five hundred five thousand, seven hundred twenty-nine".